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Animal intelligence

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• Animal psychology

• Psychology, Comparative
• Instinct

• Animal intelligence -- Early works to 1800
• Animal intelligence -- Juvenile fiction
• Animal intelligence -- Testing
• Cognition in animals

• Intellect of animals
• Intelligence of animals

• Animal Intelligence, by Edward L. Thorndike (illustrated HTML at York)
• Mental Evolution in Animals (with a posthumous essay on instinct by Darwin; London: Kegan Paul, Trench, and Co., 1883), by George John Romanes, contrib. by Charles Darwin (multiple formats at archive.org)
• The Mental Life of Monkeys and Apes: A Study of Ideational Behavior (1916), by Robert M. Yerkes (Gutenberg text)
• The Minds and Manners of Wild Animals: A Book of Personal Observations, by William T. Hornaday (Gutenberg text)
• The Modern Cat, Her Mind and Manners: An Introduction To Comparative Psychology (New York: Macmillan, 1928), by Georgina Stickland Gates (page images at HathiTrust)
• Free thoughts upon the brute-creation; or, An examination of Father Bougeant's Philosophical amusement, &c. In two letters to a Lady ... (London, Printed for R. Minors, 1742-43), by John Hildrop (page images at HathiTrust)
• The sagacious dog. (London : Dean & Son, 11, Ludgate Hill, [between 1857 and 1865]), by Dean & Son (page images at HathiTrust)
• Humor in animals : a series of studies, pen & pencil /, by W. H. Beard (page images at HathiTrust; US access only)
• De anima brutorum commentaria. (Excudebat Florentiae : Cajetan. Cambiagi ..., anno 1776), by Francesco Maria Soldini (page images at HathiTrust)
• Instinct und Intelligenz im Thierreich : ein kritischer Beitrag zur modernen Thierpsychologie / (Freiburg im Breisgau : Herder'sche Verlagshandlung, 1897), by Erich Wasmann (page images at HathiTrust; US access only)
• Animal intellect : and its relations to matter and spirit. (London : Wertheim and Macintosh, 1851), by Robert Walker Childs (page images at HathiTrust)
• Animal intelligence; an experimental study of the associative processes in animals; (New York, London, The Macmillan Company, 1898), by Edward L. Thorndike (page images at HathiTrust; US access only)
• Instinkt und intelligenz im tierreich : ein kritischer beitrag zur modernen tierpsychologie / (Freiburg im Breisgau : Herder, 1905), by Erich Wasmann (page images at HathiTrust; US access only)
• Charles Georges Leroy und seine "Lettres philosophiques". Ein beitrag zur geschichte der vergleichenden psychologie des XVIII. jahrhunderts. (Strassburg, J. Singer, 1898), by Moses Marx (page images at HathiTrust; US access only)
• The spirit of beauty; essays scientific and aesthetic. (New York, J. B. Alden, 1888), by Henry W. Parker (page images at HathiTrust)
• Mein hund Rolf, ein rechnender und buchstabierender Airedale-terrier, (Stuttgart, R. Lutz, [c1919]), by Paula Moekel, ed. by Friedrich Moekel (page images at HathiTrust; US access only)
• The animal mind : a text-book of comparative psychology / (New York : Macmillan, 1909), by Margaret Floy Washburn (page images at HathiTrust)
• Intelligence of animals with special reference to insects, (New York, J. A. Hill and Company, 1904), by John Lubbock (page images at HathiTrust)
• De animalium quibusdam animae facultatibus. Commentatio zoologica. (Culm, I. Danielewski, 1871), by August Laskowski (page images at HathiTrust)
• Instinct und Intelligenz im Thierreich : ein kritischer Beitrag zur modernen Thierpsychologie / (Freiburg im Breisgau ; St. Louis, Mo. : Herder, 1899), by Erich Wasmann (page images at HathiTrust; US access only)
• La psicologia degli animali; prolegomeni. (Torino, Bocca, 1922), by Nicola Checchia (page images at HathiTrust; US access only)
• Animal intelligence; an experimetal study of the associative processes in animals. (New York, 1898), by Edward L. Thorndike (page images at HathiTrust)
• An essay on the future life of brutes, introduced with observations upon evil, its nature, and origin. (Manchester, Printed by G. Kearsly, 1768), by Richard Dean (page images at HathiTrust)
• Tierseele. (Bonn, 1913-1914) (page images at HathiTrust; US access only)
• Die Thierseele. Eine Psychologie der Thiere. (Leipzig, C. Wilfferodt, 1868), by Fritz Schultze (page images at HathiTrust)
• The transmission of arbitrary environmental information between bottle-nose dolphins / (China Lake, Calif. : U.S. Naval Ordnance Test Station, [1967]), by Jarvis Bastian and Calif.) Naval Ordnance Test Station (China Lake (page images at HathiTrust)
• Traité des animaux : où, après avoir fait des observations critiques sur le sentiment de Descartes & sur celui de M. de Buffon, on entreprend d'expliquer leurs principales facultés / (A Amsterdam, et se vend à Paris : Chez Ch. Ant. Jombert ..., MDCCLXVI [1766]), by Etienne Bonnot de Condillac and Joseph Adrien Lelarge de Lignac (page images at HathiTrust)
• Lettres philosophiques sur l'intelligence et la perfectibilité des animaux, avec quelques lettres sur l'homme, (Paris, Chez Bossange, Masson et Besson, 1802), by Charles Georges Leroy (page images at HathiTrust)
• The Canada porcupine : a study of the learning process. (Cambridge, Mass. : Holt, [1913]), by L. W. Sackett (page images at HathiTrust; US access only)
• An experimental study of transfer of response in the white rat, (New York, H. Holt & compant;, [1919]), by Harry H. Wylie (page images at HathiTrust)
• Redintegration in the albino rat, a study in retention, (New York, H. Holt & company; [etc., etc.], 1919), by Thomas William Brockbank (page images at HathiTrust)
• Gibt es denkende tiere? Eine entgegnung auf Kralls "Denkende tiere", (Leipzig, Berlin, W. Engelmann, 1914), by István Máday (page images at HathiTrust; US access only)
• The intelligence of animals, (New York, C. Scribner's sons, 1885), by Ernest Menault (page images at HathiTrust)
• A book of mortals; being a record of the good deeds and good qualities of what humanity is pleased to call the lower animals. (New York, The Macmillan company, 1906), by Flora Annie Webster Steel (page images at HathiTrust)
• Aus dem Seelenleben höherer Tiere. (Leipzig, Thomas, 1910), by Alexander Sokolowsky and W. Heubach (page images at HathiTrust; US access only)
• Seele und Sinne des Tieres contra Doctor Th. Zell, eine Erwiderung auf die Schrift des Dr. Th. Zell "Ist das Tier Unvernünftig?" (Dresden, 1906), by Hermann Heinrich Rothe (page images at HathiTrust; US access only)
• Denkende Tiere, Beitrage zur Tierseelenkunde auf Grund eigener Versuche. (Leipzig, Verlag von X.Y.Z. nachfolger, 1911), by Karl Krall (page images at HathiTrust; US access only)
• Von den aufgaben der tierpsychologie, (Berlin, Gebrüder Borntraeger, 1921), by Bastian Schmid (page images at HathiTrust; US access only)
• Die seele des tieres; berichte über die neuen beobachtungen an pferden und hunden, (Berlin, W. Junk, 1916 [c1915]), by Gesellschaft für Tierpsychologie and H. E. Ziegler (page images at HathiTrust; US access only)
• Animal intelligence / (New York : D. Appleton, 1888), by George John Romanes (page images at HathiTrust)
• The raccoon : a study in animal intelligence / ([S.l. : s.n., 1907?]), by H. B. Davis (page images at HathiTrust)
• Ueber das Seelenleben der Thiere : Thatsachen und Betrachtungen / (Leipzig ; Heidelberg : C.F. Winter'sche Verlagshandlung, 1876), by Maximilian Perty (page images at HathiTrust)
• Die intellektuellen eigenschaften (geist und seele) der pferde. (Stuttgart, Schickhardt & Ebner, 1899), by F. A. Zürn (page images at HathiTrust; US access only)
• Three essays on the wild life, (Philadelphia, Privately printed, 1905), by Alden Sampson (page images at HathiTrust)
• Die Seele der Tiere im Lichte der Forschung unserer Tage. (Leipzig, Theodor Oswald Weigel, 1908), by O. M. Reuter (page images at HathiTrust; US access only)
• Animal intelligence. (New York, D. Appleton and Company, 1883), by George John Romanes (page images at HathiTrust)
• Animal intelligence / (New York : Appleton, 1890), by George John Romanes (page images at HathiTrust)
• Animal intelligence. (New York, D. Appleton and company, 1891), by George John Romanes (page images at HathiTrust)
• Animal intelligence. (New York, D. Appleton and company, 1892), by George John Romanes (page images at HathiTrust)
• Die Vorstellungen der Tiere. Philosophie und Entwicklungsgeschichte (Berlin, G. Reimer, 1906), by Kurt Graeser (page images at HathiTrust; US access only)
• The spirit of beauty; essays scientific and aesthetic. (New York, J.A. Berry, 1888), by Henry W. Parker (page images at HathiTrust)
• A book of mortals ; being a record of the good deeds and good qualities of what humanity is pleased to call the lower animals / (London : W. Heinemann, 1905), by Flora Annie Webster Steel (page images at HathiTrust; US access only)
• Mein hund Rolf, ein rechnender und buchstabierender Airedale-terrier, (Stuttgart : R. Lutz, [c1919]), by Paula Moekel and Friedrich Moekel (page images at HathiTrust; US access only)
• The nature and development of animal intelligence, (London, T. F. Unwin, 1898), by Wesley Mills (page images at HathiTrust; US access only)
• The question concerning the sensibility, intelligence, and instinctive actions of insects. (Paris, Printed by A. Belin, [1837]), by Charles Davis Badham (page images at HathiTrust)
• Intelligence in plants and animals: (New York, Doubleday, Page & co., 1900), by Thomas G. Gentry (page images at HathiTrust)
• Das Pferd der Herrn von Osten , der kluge Hans : ein Beitrag zur Experimentellen Tier- und Menschen-psychologie / (Leipzig : [publisher not identified], 1907), by Oskar Pfungst and K. Stumpf (page images at HathiTrust; US access only)
• Man and beast, here and hereafter, illustrated by more than three hundred original anecdotes; (London, Gibbings & company, 1903), by J. G. Wood (page images at HathiTrust)
• Lola, or, The thought and speech of animals, (New York, E.P. Dutton and company, [1923]), by Henny Kindermann and William Mackenzie, trans. by Agnes Blake (page images at HathiTrust)
• The minds and manners of wild animals : a book of personal observations / (New York : C. Scribner's Sons, 1923), by William T. Hornaday (page images at HathiTrust)
• The evolution of animal intelligence, (New York, H. Holt and Company, [1923]), by Samuel J. Holmes (page images at HathiTrust)
• Animal intelligence. (London, K. Paul, Trench & co., 1886), by George John Romanes (page images at HathiTrust)
• The intelligence of animals, with illustrative anecdotes. ([New York] C. Scribner, 1872), by Ernest Menault (page images at HathiTrust)
• Man and beast, here and hereafter : illustrated by more than three hundred original anecdotes / (New York : Routledge, [between 1850 and 1899?]), by J. G. Wood (page images at HathiTrust)
• Visual pattern-discrimination in the vertebrates. ([Cambridge, Mass.] : [publisher not identified], [1914-1916]), by Harry Miles Johnson (page images at HathiTrust)
• Causeries sur la psychologie des animaux. (Leipzig, 1862), by F. M. Troegel (page images at HathiTrust)
• Les animaux célb̀res; anecdotes historiques sur des traits d'intelligence, d'adresse, de courage ... [etc.] ... (Paris, F. Louis, 1813-), by A. Antione (page images at HathiTrust; US access only)
• Mind in the lower animals in health and disease. (New York : D. Appleton, 1880), by W. Lauder Lindsay (page images at HathiTrust)
• An essay on the future life of brute creatures. (London, G. Kearsly, 1768), by Richard Dean (page images at HathiTrust)
• Le chien; psychologie, olfaction, mécanisme de l'odorat. (Paris, Les Éditions de l' "Éleveur", [1921]), by L. Huyghebaert (page images at HathiTrust; US access only)
• Die gastpflege der ameisen, ihre biologischen und philosophischen probleme (234. beitrag zur kenntnis der myrmecophilen und termitophilen) (Berlin, Gebrüder Borntraeger, 1920), by Erich Wasmann (page images at HathiTrust; US access only)
• De l'instinct et de l'intelligence des animaux. (Paris, Hachette, 1851), by P. Flourens (page images at HathiTrust)
• Tier- und Menschenverstand. (München, O. Gmelin, [1909]), by Langfeldt (page images at HathiTrust; US access only)
• Gyvuliu protas. Lietuviu kalbon vertē Juozas Laukis. (Chicago, Ill., Amerikos Lietuviu dienraščio "Kataliko" lēšos ir spauda, 1915), by Th. Zell and J. Laukis (page images at HathiTrust)
• Die neue Tierpsychologie, (Leipzig, Veit, 1912), by Georges Bohn, trans. by Rose Thesing (page images at HathiTrust; US access only)
• The animal mind; a text-book of comparative psychology, (New York, The Macmillan company, 1913), by Margaret Floy Washburn (page images at HathiTrust)
• Animma delle bestie; impugnata spirituale coi principj della metafisica ... (Udine, 1774), by Carlo Paroni (page images at HathiTrust)
• The intelligence of animals, with illustrative anecdotes. ([New York] C. Scribner & Co., 1869), by Ernest Menault (page images at HathiTrust)
• Versuch einer vollständigen Thierseelenkunde. (Stuttgart, Tübingen, J. G. Cotta, 1840), by Peter S. Scheitlin (page images at HathiTrust)
• Lettres philosphiques sur l'intelligence et la perfectibilité des animaux, avec quelques lettres sur l'homme. (Paris, Valade, 1802), by Charles Georges Leroy (page images at HathiTrust)
• Anfänge der kunst im tierreich und bei zwergvölkern, mit besonderer berücksichtigung der dramatischen darstellun, (Leipzig, R. Voigtländer, 1914), by Karl Julius Anton Schroeter (page images at HathiTrust; US access only)
• On the habits and instincts of animals / (London : Printed for Longman, Orme, Brown, Green, & Longmans, 1840), by William Swainson (page images at HathiTrust)
• Über den sogenannten Instinct des Huhns und der Ente; Beobachtungen und Versuche, nebst Schlussforlgerungen. (New York : Schmidt, 1872), by Georg C. Stiebeling (page images at HathiTrust)
• Tierseele und Menschenseele, (Stuttgart, Kosmos, Gesellschaft der Naturfreunde, [1924]), by Wilhelm Bölsche (page images at HathiTrust; US access only)
• Az állatok lelki fejlödésének sajátságiról (vonatkozással az emberre). (Budapest, A "Studium" kiadása, 1924), by Kolosváry Gábor (page images at HathiTrust; US access only)
• Animal intelligence. (New York : Appleton, 1899), by George John Romanes (page images at HathiTrust; US access only)
• Where is my dog? or, Is man alone immortal? (New York, Fowler & Wells company, 1892), by Charles Josiah Adams (page images at HathiTrust)
• Die Geisteskräfte der Menschen verglichen mit denen der Thiere : ein Bedenken gegen Darwin's Ansicht über denselben Gegenstand / (Leipzig : Veit, 1878), by Ludwig Strümpell (page images at HathiTrust)
• Psycho-biologische Untersuchungen an Hummeln mit Bezugnahme auf die Frage der Geselligkeit im Tierreiche, (Stuttgart, E. Schweizerbartsche Verlagsbuchhandlung (E. Nägele), 1907), by Woldemar Wagner (page images at HathiTrust; US access only)
• The humanizing of the brute ; or, the essential difference between the human and animal soul proved from their specific activities. (St. Louis : B. Herder, 1906), by Hermann Muckermann (page images at HathiTrust)
• L'intelligence des animaux, (Paris, L. Hachette et cie., 1868), by Ernest Menault (page images at HathiTrust)
• L'homme et la bête / (Paris : Firmin Didot, 1872), by Arthur Mangin (page images at HathiTrust)
• Life and immortality; or, Souls in plants and animals ... (Philadelphia, Burk, 1897), by Thomas G. Gentry (page images at HathiTrust)
• On the senses; instincts & intelligence of animals, with special reference to insects. (New York, Appleton, 1894), by John Lubbock (page images at HathiTrust)
• Animal intelligence. (New York, D. Appleton, 1906), by George John Romanes (page images at HathiTrust)
• Das rätsel der denkenden tiere, (Wien, Leipzig, W. Braumüller, 1914), by Gustav Harter (page images at HathiTrust; US access only)
• Instinto e intelligenza nel regno animale, contributo critico alla zoopsicologia moderna. (Firenze, Libreria editrice fiorentina, 1908), by Erich Wasmann (page images at HathiTrust; US access only)
• Experiments in educability, ([Seattle, Printed at the University of Washington, 1914]), by Stevenson Smith (page images at HathiTrust)
• Traité des animaux. Où, après avoir fait des observations critiques sur le sentiment de Descartes, et sur celui de M. de Buffon, on entreprend d'expliquer leurs principales facultés. ([Paris, Dufart, 1803]), by Etienne Bonnot de Condillac (page images at HathiTrust)
• Vergleichende Psychologie oder Geschichte der Seele in der Reihenfolge der Thierwelt / (Wien : W. Braumüller, 1866), by Carl Gustav Carus (page images at HathiTrust)
• Maze learning in rats in the absence of specific intra- and extra-maze stimuli, (Berkeley, Calif., University of California press, 1933), by Charles H. Honzik (page images at HathiTrust)
• Instinct und Intelligenz im Thierreich : ein kritischer Beitrag zur modernen Thierpsychologie. (Freiburg im Breisgau : Herder, 1897), by Erich Wasmann (page images at HathiTrust; US access only)
• Ueber das Seelenleben der Thiere. Thatsachen und Betrachtungen. (Leipzig, C.F. Winter, 1865), by Maximilian Perty (page images at HathiTrust)
• Animal behaviour, (London, E. Arnold, 1920), by C. Lloyd Morgan (page images at HathiTrust; US access only)
• Ist das Tier unvernünftig? : neue Einblicke in die Tierseele / (Stuttgart : Franckhs̓che Verlagshandlung, [1903?]), by Th. Zell (page images at HathiTrust; US access only)
• Anfänge der kunst im tierreich und bei zwergvölkern, mit besonderer berücksichtigung der dramatischen darstellung, (Leipzig, R. Voigtländer, 1914), by Karl Julius Anton Schroeter (page images at HathiTrust; US access only)
• L'intelligence des animaux / (Paris : L. Hachette et cie., 1869), by Ernest Menault (page images at HathiTrust)
• Intelligenzprüfungen an Menschenaffen / (Berlin : J. Springer, 1921), by Wolfgang Köhler (page images at HathiTrust; US access only)
• ...An analysis of the learning process in the snail Physagyrina Say (Cambridge, Boston, Mass. New York H. Holt & company etc., etc., 1917), by Elizabeth Lockwood Thompson (page images at HathiTrust; US access only)
• Animal behaviour, (London, E. Arnold, New York, Johnson Reprint Corp., 1900;, [1970]), by C. Lloyd Morgan (page images at HathiTrust; US access only)
• Trattato sopra l'essenza dell' anima delle bestie ... (In Milano, nella Stamperia di G. Mazzucchelli, 1766), by Domenico Pino (page images at HathiTrust)
• Instinct and intelligence, (New York, Cochrane publishing company, 1910), by Perley Martin Cartmell (page images at HathiTrust)
• The animal mind; a text-book of comparative psychology. (New York, The Macmillan company, 1908), by Margaret Floy Washburn (page images at HathiTrust)
• Les petites idées des grosses bêtes. (Paris, Fayard, c1922), by Henri Coupin (page images at HathiTrust; US access only)
• De la creation; essai sur l'origine et la progression des êtres. (Paris, Treuttel et Wurtz, 1841), by M. Boucher de Perthes (page images at HathiTrust)
• Mental evolution in animals [electronic resource] / (New York : D. Appleton, 1900), by George John Romanes and Charles Darwin (page images at HathiTrust)
• Tierpsychologie, (Leipzig, Quelle & Meyer, 1925), by Robert Sommer (page images at HathiTrust; US access only)
• Thier-psychologie. (Stuttgart, Schickhardt & Ebner, 1881), by Leonhard Hoffman (page images at HathiTrust)
• L'homme et l'animal devant la méthode expérimentale (Paris, E. Dentu, 1883), by A Netter and F. Musany (page images at HathiTrust)
• Animal intelligence / (New York : D. Appleton and company, 1895), by George John Romanes (page images at HathiTrust)
• Mental evolution in animals [electronic resource] / (London : K. Paul, Trench, 1883), by George John Romanes and Charles Darwin (page images at HathiTrust)
• Animal intelligence [electronic resource] / (London : Kegan Paul, Trench, 1882), by George John Romanes (page images at HathiTrust)
• L'évolution mentale chez les animaux / par George John Romanes. Suivi d'un essai posthume sur l'instinct / par Charles Darwin [ressource électronique] / (Paris : C. Reinwald, 1884), by George John Romanes and Charles Darwin (page images at HathiTrust)
• La Fontaine et Descartes; ou, Les deux rats, le renard et l'oeuf. (Paris, Berger-Levrault, 1886), by A. Netter (page images at HathiTrust)
• Les facultés mentales des animaux. (Paris, Baillière, 1890), by Dr. Foveau de Courmelles (page images at HathiTrust)
• Wild traits in tame animals; being some familiar studies in evolution, (Edinburgh and London, W. Blackwood and sons, 1897), by Louis Robinson (page images at HathiTrust; US access only)
• The animal mind; a text-book of comparative psychology. (New York, The Macmillan company, 1917), by Margaret Floy Washburn (page images at HathiTrust)
• The effect of length of blind alleys on maze learning: an experiment on twenty-four white rates (New York, H. Holt & Company; [etc., etc., 1917]), by Joseph Peterson (page images at HathiTrust)
• Discours ... [sur les instincts et l'intelligence des animaux.] ([Alger, Typographie Duclaux, 1867]), by Auguste Bourlier (page images at HathiTrust)
• Transfer of training in white rats upon various series of mazes ... ([New York, 1919]), by Rutledge Thornton Wiltbank (page images at HathiTrust)
• Clever Hans (the horse of Mr. von Osten) : a contribution to experimental animal and human psychology / (New York : H. Holt and company, 1911), by Oskar Pfungst and Carl L. 1881- Rahm (page images at HathiTrust)
• The influence of the time interval upon the rate of learning in the white rat ... ([Princeton, Princeton university press, 1921]), by Joseph Ussery Yarbrough (page images at HathiTrust)
• Mind and performance; (New York, Vantage Press, [1954]), by Harold Kenneth Fink (page images at HathiTrust)
• Das seelenleben der tiere. (Langensalza, H. Beyer, 1897), by O. Flügel (page images at HathiTrust; US access only)
• The mentality of apes / (London, K. Paul, Trench, Trubner & co., ltd.; \New York, Harcourt, Brace & company, inc., 1925), by Wolfgang Köhler and Ella Winter (page images at HathiTrust; US access only)
• Animal intelligence. (London, K. Paul, Trench, & co., 1882), by George John Romanes (page images at HathiTrust)
• Intelligenzprüfungen an Menschenenaffen, (Berlin, J. Springer, 1921), by Wolfgang Köhler and Tenerife (Canary Islands) Anthropoidenstation (page images at HathiTrust; US access only)
• The investigation of mind in animals, (Cambridge [Eng.] The University press, 1923), by Emily Mary Smith (page images at HathiTrust; US access only)
• The investigation of mind in animals, (Cambridge : University Press, 1915), by Emily Mary Smith (page images at HathiTrust; US access only)
• L'intelligence des animaux, (Paris, Hachette et cie., 1881), by Ernest Menault (page images at HathiTrust)
• Vergleichende psychologie : oder, Die lehre von dem Seelenleben des Menschen und der Tiere / (Jena : G. Fischer, 1922), by Friedrich Dahl (page images at HathiTrust; US access only)
• La nouvelle psychologie animale, (Paris, F. Alcan, 1911), by Georges Bohn (page images at HathiTrust; US access only)
• The homing of ants: an experimental study of ant behavior ... (Chicago, 1907), by Charles Henry Turner (page images at HathiTrust)
• Animal intelligence; experimental studies. (New York, The Macmillan company, 1911), by Edward L. Thorndike (page images at HathiTrust)
• Studies in animal behavior (Boston, R. G. Badger; [etc., etc., c1916]), by Samuel J. Holmes (page images at HathiTrust)
• Animal intelligence. (London : K. Paul, Trench, Trubner, 1895), by George John Remanes (page images at HathiTrust)
• Distribution of effort in learning in the white rat ... ([New York, 1915]), by John Linck Ulrich (page images at HathiTrust)
• Études philosophiques sur l'instinct et l'intelligence des animaux / (Paris : Berger-Levrault, 1853), by Antoine Laurent Apollinaire Fée (page images at HathiTrust)
• Redintegration in the albino rat, a study in retention, (Washington, D.C., 1918), by Thomas William Brockbank (page images at HathiTrust)
• The evolution of animal intelligence, (New York, H. Holt and company, c1911), by Samuel J. Holmes (page images at HathiTrust)
• Humor in animals : a series of studies, pen & pencil /, by W. H. Beard (page images at HathiTrust; US access only)
• Fixation and regression in the rat, (Evanston, Ill., The American Psychological Association, inc., [1942]), by Robert Watson Kleemeier (page images at HathiTrust; US access only)
• Lettres sur les animaux, (Paris, Poulet-Malassis, 1862), by Charles Georges Leroy (page images at HathiTrust)
• Problems of selective behavior. (Lincoln, The University, 1951), by James Butt Klee (page images at HathiTrust)
• Entretiens sur la nature de l'ame des bêtes. (A Basle, 1760), by Franc̦ois Aubert (page images at HathiTrust)
• Chimpanzee intelligence and its vocal expressions, (Baltimore, The Williams & Wilkins company, 1925), by Robert M. Yerkes and Blanche W. Learned (page images at HathiTrust)
• An experimental study of transfer of response in white rats ... ([Chicago?, 1917]), by Harry H. Wylie (page images at HathiTrust)
• La vie psychique des bétes / (Paris : C. Reinwald, 1881), by Ludwig Büchner and Ch. Letourneau (page images at HathiTrust)
• Examen psychologique des animaux; nouvelle méthode expérimentale de classification des espèces au point de vue psychologique. (Paris, Schleicher, 1900), by Pierre Hachet-Souplet (page images at HathiTrust; US access only)
• Intelligence in plants and animals; being a new edition of the author's privately issued "Soul and immortality." (New York, Doubleday, Page & co., 1900), by Thomas G. Gentry (page images at HathiTrust)
• The associative processes of the guinea pig. A study of the psychical development of an animal with a nervous system well medullated at birth ... ([Granville, O., 1904]), by Jessie Blount Allen Charters (page images at HathiTrust)
• The nature & development of animal intelligence / (New York : Macmillan, 1898), by Wesley Mills (page images at HathiTrust)
• Vignaud pamphlets. Instinct and intelligence. ([1806-78]) (page images at HathiTrust)
• Animal life and intelligence. (London, E. Arnold, 1890-91), by C. Lloyd Morgan (page images at HathiTrust)
• Tierpsychologie vom Standpunkte des biologen, (Leipzig, Akademische Verlagsgesellschaft M.B.H., 1926), by Friedrich Hempelmann (page images at HathiTrust; US access only)
• The animal mind; a text-book of comparative psychology, (New York, The Macmillan company, 1926), by Margaret Floy Washburn (page images at HathiTrust)
• The marvels of animal ingenuity; an interesting account of the curious habits & homes of many animals, birds & insects, (Philadelphia, J.B. Lippincott company; London, Seeley, Service & co. ltd., 1926), by Charles Aubrey Ealand (page images at HathiTrust; US access only)
• Das seelenleben der tiere, (Wien [etc.] Rikola verlag, 1926), by Bastian Schmid (page images at HathiTrust; US access only)
• Lettres sur les animaux / (Paris : Vigot frères, 1896), by Charles Georges Leroy (page images at HathiTrust)
• Animal intelligence / (London : Kegan Paul, Trench, Trübner & Co., 1904), by George John Romanes and Charles C. Miller Memorial Apicultural Library WU. (page images at HathiTrust)
• Man and beast here and hereafter : illustrated by more than three hundred original anecdotes / (New York : Harper, 1875), by J. G. Wood (page images at HathiTrust)
• De l'instinct et de l'intelligence des animaux. (Paris, Garnier frères, 1861), by P. Flourens (page images at HathiTrust)
• Mind in the lower animals, in health and disease, (New York, D. Appleton and Company, 1880), by W. Lauder Lindsay (page images at HathiTrust)
• Mind and heredity, (Princeton, Princeton university press; [etc., etc.], 1923), by Vernon L. Kellogg (page images at HathiTrust)
• Au courant de la vie ... (Paris : Dorbon-aîné, [1914]), by Camille Saint-Saëns (page images at HathiTrust; US access only)
• Instinct and intelligence, (London, H. Frowde, 1915), by Nottidge Charles Macnamara (page images at HathiTrust; US access only)
• Experiments with form perception and learning in dogs, (Baltimore, The Williams & Wilkins company, c1926), by Joseph A. Williams (page images at HathiTrust)
• Animal ingenuity of to-day; a description of the skill, clever devices & stratagems of birds, reptiles, insects and other forms of animal life, their means of subsistence & protection, (Philadelphia, J.B. Lippincott company; London, Seeley, Service & co. ltd., 1921), by Charles Aubrey Ealand (page images at HathiTrust; US access only)
• Über das Fundamentalgesetz der Intelligenz im Thierreiche; Versuch einer vergleichenden Psychologie. (Leipzig, Brockhaus, 1879), by Tito Vignoli (page images at HathiTrust)
• A philosopher with nature, (London, Methuen, [1921]), by Benjamin Kidd and Franklin Kidd (page images at HathiTrust; US access only)
• Della legge fondamentale dell'intelligenza nel regno animale; (Milano, Fratelli Dumolard, 1877), by Tito Vignoli (page images at HathiTrust)
• Intelligenzprüfungen an anthropoiden. 1.- / (Berlin : Königl. akademie der wissenschaften, 1917-), by Wolfgang Köhler (page images at HathiTrust; US access only)
• Mind in the lower animals in health and disease, (London, C. K. Paul, l879), by W. Lauder Lindsay (page images at HathiTrust)
• Intelligenzprüfungen an Menschenaffen / (Berlin : J. Springer, 1921-), by Wolfgang Köhler (page images at HathiTrust; US access only)
• Denkende tiere, beiträge zur tierseelenkunde auf grund eigener versuche, (Leipzig, F. Engelmann, 1912), by Karl Krall (page images at HathiTrust; US access only)
• Psychologie comparée de l'intelligence et de l'instinct dans l'homme et dans l'animal, (Paris, A. M. Ainé, 1878), by J. Tissot (page images at HathiTrust)
• A vindication of the rights of brutes (1792) / (Gainesville, Fla. : Scholars' Facsimiles & Reprints, 1966), by Thomas Taylor (page images at HathiTrust; US access only)
• Animal life and intelligence. (Boston : Ginn, 1895), by Conway Lloyd Morgan (page images at HathiTrust)
• Principles of animal understandings; a constructive essay on the intercourse in the animal world, ([New York, 1905]), by Hermann Toenjes (page images at HathiTrust)
• Animal life and intelligence / (Boston : Ginn, 1891), by C. Lloyd Morgan (page images at HathiTrust)
• The minds and manners of wild animals; a book of personal observations, (New York : C. Scribner's sons, 1922), by William T. Hornaday (page images at HathiTrust)
• The reasoning power in animals. (London, Reeve & Co., 1867), by J. S. Watson (page images at HathiTrust)
• Mental evolution in animals. With a posthumous essay on instinct, (New York, AMS Press, [1969]), by George John Romanes and Charles Darwin (page images at HathiTrust)
• Mitteilungen der Gesellschaft für Tierpsychologie. Im auftrage der gesellschaft herausgegeben vom geschäftsführenden ausschuss ... (Elberfeld [etc., 1913-), by Gesellschaft für Tierpsychologie, ed. by H. E. Ziegler (page images at HathiTrust; US access only)
• The immortality of animals and the relation of man as guardian, from a Biblical and philosophical hypothesis, (Philadelphia, G. W. Jacobs & co., [1903]), by E. D. Buckner (page images at HathiTrust)
• Animal behaviour, (London, E. Arnold, 1900), by C. Lloyd Morgan (page images at HathiTrust; US access only)
• Intelligence in Plants and Animals: Being a New Edition of the Author's Privately Issued "Soul and Immortality.", by Thomas G. Gentry (Gutenberg ebook)
• Animal Behaviour, by C. Lloyd Morgan (Gutenberg ebook)
• Animal Life and Intelligence, by C. Lloyd Morgan (Gutenberg ebook)
• Animal Intelligence: The International Scientific Series, Vol. XLIV., by George John Romanes (Gutenberg ebook)
• Clever Hans (The Horse of Mr. Von Osten): A contribution to experimental animal and human psychology, by Oskar Pfungst, trans. by Carl Leo Rahn (Gutenberg ebook)
• Ways of Nature, by John Burroughs (Gutenberg ebook)
• Lola; Or, The Thought and Speech of Animals, by Henny Kindermann, trans. by Agnes Blake, contrib. by William Mackenzie (Gutenberg ebook)
• Traité de la connoissance des animaux. English (London : Printed by Tho. Newcomb for Humphrey Moseley at the Princes Arms in St. Pauls Church-Yard, 1657 [i.e. 1658]), by Marin Cureau de La Chambre and Person of quality (HTML at EEBO TCP)

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