| Call number | Item |
| Q | Science (Go to start of category) |
| QH-QR | Biological Sciences (Go to start of category) |
| QR | Microbiology (Go to start of category) |
| QR53 .G34 | ![[X-Info]](http://onlinebooks.library.upenn.edu/infouc.gif) An introduction to the microbiology of water and sewage for engineering students, by P. L. Gainey. (Minneapolis, Minn., Burgess publishing company, mimeoprint and photo offset publishers, c1939), by Percy Leigh Gainey (page images at HathiTrust) |
| QR53 .G34 1950 | An introduction to the microbiology of water and sewage for engineering students, (Minneapolis, Burgess Pub. Co., [1950]), by Percy Leigh Gainey (page images at HathiTrust) |
| QR55. O4 | Star lore of all ages : a collection of myths, legends, and facts concerning the constellations of the Northern hemisphere / by William Tyler Olcott. (New York : G.P. Putnam's Sons, 1911. --), by William Tyler Olcott (page images at HathiTrust) |
| QR 56 .B29 1887 | Vorlesungen über Bacterien, von A. de Bary. ... (Leipzig. W. Engelmann, 1887), by A. de Bary (page images at HathiTrust; US access only) |
| QR 56 .B293 1887 | Lectures on bacteria, by A. de Bary ... (Oxford, Clarendon Press, 1887), by A. de Bary (page images at HathiTrust; US access only) |
| QR 56 .B293 1898 | Lectures on bacteria by A. De Bary... (Oxford, Clarendon press, 1898), by A. de Bary (page images at HathiTrust; US access only) |
| QR56 .B7 | Bacteriology, by Carl H. Browning. (New York, H. Holt and company; [etc., etc., c1925]), by Carl hamilton Browning (page images at HathiTrust) |
| QR56 .C7 1903 | Bacteria, yeasts, and molds in the home, by H. W. Conn. (Boston, London Ginn and company, 1903), by H. W. Conn (page images at HathiTrust; US access only) |
| QR56 .C7 1932 | Bacteria, yeasts, and molds in the home, by H. W. Conn ... (Boston, New York [etc.] Ginn and company, [c1932]), by H. W. Conn (page images at HathiTrust) |
| QR56 .C738 | The story of germ life, by H. W. Conn. (New York : D. Appleton and company, 1897), by H. W. Conn (page images at HathiTrust) |
| QR56 .C738 | The story of germ life / by H. W. Conn. (New York : D. Appleton and company, 1901, c1897), by H. W. Conn (page images at HathiTrust) |
| QR56 .C74 | ![[Info]](http://onlinebooks.library.upenn.edu/info.gif) The Story of Germ Life (ca.1915), by H. W. Conn (Gutenberg text) |
| QR 56 .C752 | Bacteria, yeasts, & molds in the home... (Boston London, Ginn & co., [1912]), by H. W. Conn (page images at HathiTrust; US access only) |
| QR 56 .E46 1911 | Household bacteriology, by S. Maria Elliott ... (Chicago, American school of home economics, #), by S. Maria Elliott (page images at HathiTrust) |
| QR 56 .H249 E5 1896 | Practical studies in fermentation; being contributions to the life history of micro-organisms, by Emil Chr. Hansen ... tr. by Alex K. Miller ... and rev. by the author. (London, E. & F.N. Spon; New York, Spon & Chamberlain, 1896), by Emil Chr. Hansen (page images at HathiTrust; US access only) |
| QR 56 .H249 1890 | Untersuchungen aus der Praxis der Gärungsindustrie. Von Dr. Emil Chr. Hansen. ... I.-[II.] Heft. (München und Leipzig, R. Oldenbourg, 1890-92), by Emil Chr. Hansen (page images at HathiTrust; US access only) |
| QR56 .H4 | Our friends and our foes of the invisible world : microbes, good and bad / by Harvey Hersey ... with one hundred and sixteen illustrations. (New York : T. Y. Crowell, 1913), by Harvey Hersey (page images at HathiTrust; US access only) |
| QR56 .J64 | Micro-organisms and fermentation. (London, New York, Macmillan and co., limited, 1900), by Alfred Jørgensen (page images at HathiTrust; US access only) |
| QR56 .K4 | Civilization and the microbe, by Arthur Isaac Kendall ... (Boston ; New York : Houghton Mifflin company, 1923), by Arthur Isaac Kendall (page images at HathiTrust) |
| QR56 .N55 | Bacteria, especially as they are related to the economy of nature, (New York, G. P. Putnam's sons;, 1899), by George Newman (page images at HathiTrust) |
| QR56 .P8 | The story of the bacteria and their relations to health and disease, (New York & London, G. P. Putnam's sons, 1889), by T. Mitchell Prudden (page images at HathiTrust; US access only) |
| QR56 .P8 1910 | The story of the bacteria and their relations to health and disease, by T. Mitchell Prudden. (New York, London, G. P. Putnam, 1910), by T. Mitchell Prudden (page images at HathiTrust; US access only) |
| QR56 .P8 1917 | The story of the bacteria and their relations to health and disease. (New York and London : G. P. Putnam's sons, 1917), by T. Mitchell Prudden (page images at HathiTrust; US access only) |
| QR56 .T83 1886 | Les microbes, les ferments et les moisissures, par le dr É.-L. Trouessart. Avec 107 figures dans le texte. (Paris, F. Alcan, 1886), by E.-L. Trouessart (page images at HathiTrust; US access only) |
| QR56 .T85 | Microbes, ferments and moulds, by E. L. Trouessart. With one hundred and seven illustrations. (New York : D. Appleton and co., 1886), by E.-L. Trouessart (page images at HathiTrust) |
