| Call number | Item |
| T | Technology (Go to start of category) |
| TP | Chemical Technology (Go to start of category) |
| TP942 .B8 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) A Handbook on Japanning, for Ironware, Tinware, Wood, Etc.; With Sections on Tinplating and Galvanizing (second edition; London: Scott, Greenwood, and Son, 1913), by William Norman Brown (multiple formats at archive.org) |
| TP947 .C33 | Forty Centuries of Ink, by David Nunes Carvalho |
| TP963 .S27 | Chemistry and Technology of Fertilizers (second printing; New York: Reinhold Pub. Corp.; London: Chapman and Hall, 1963), ed. by Vincent Sauchelli (page images at HathiTrust) |
| TP968 .L2 | Glue, Gelatine and Their Allied Products: A Practical Handbook for the Manufacturer, Agriculturist, and Student of Technology (London: C. Griffin and Co., 1905), by Thomas Lambert (multiple formats at archive.org) |
| TP968 .R4 | Modern Glues and Glue Testing (Other Than Waterproof Glues) (with "Glue Room Equipment and the Use of Glue"; Grand Rapids, MI: Periodical Pub. Co., c1922), by Clyde Harry Teesdale and C. Mortimer Bezeau (multiple formats at archive.org) |
| TP968 .R54 | Glue and Glue Testing (London: Scott, Greenwood and Co., 1900), by Samuel Rideal |
| TP968 .S82 1996 | Thin-Layer Chromatography for Binding Media Analysis (Los Angeles: Getty Conservation Institute, c1996), by Mary F. Striegel and Jo Hill (page images and PDF with commentary at getty.edu and Google) |
| TP983 .A77 | Perfume and Flavor Materials of Natural Origin (1960), by Steffen Arctander (page images at HathiTrust) |
| TP983 .C77 | The Toilet and Cosmetic Arts in Ancient and Modern Times: With a Review of the Different Theories of Beauty, and Copious Allied Information, Social, Hygienic, and Medical (London: R. Hardwicke, 1866), by Arnold James Cooley |
| TP983 .C93 | Perfumery and Kindred Arts: A Comprehensive Treatise on Perfumery (Philadelphia: H. C. Baird, 1877), by R. S. Cristiani (multiple formats at archive.org) |
| TP990 | A Technical Treatise on Soap and Candles, With a Glance at the Industry of Fats and Oils (Philadelphia: H. C. Baird, 1881), by R. S. Cristiani (PDF and zipped uncorrected OCR files at rawlaw.org) |
| TR | Photography (Go to start of category) |
| TR1 .A14 | The Australasian Photo-Review (issues online 1899-1954) (partial serial archives) |
| TR1 .A38 | Amateur Photographer (partial serial archives) |
| TR1 .A58 | American Photography (partial serial archives) |
| TR1 .I65 | International Photographer (partial serial archives) |
| TR1 .P778 | Royal Photographic Society Journal (partial serial archives) |
| TR7 .E32 | Abridged Scientific Publications from Kodak Laboratories (partial serial archives) |
| TR7 .H5 | Humphrey's Journal (partial serial archives) |
| TR7 .H58 | La Métrophotographie (in French; Paris: Gauthier-Villars, 1899), by A. Laussedat (page images and PDF at cnam.fr) |
| TR15 .H578 | Ars Magna Lucis et Umbrae (in Latin; Rome: Sumptibus H. Scheus, 1646), by Athanasius Kircher (page images in Germany) |
| TR15 .H581 | Description des Daguerréotypes qui se Fabriquent Chez l'Ingénieur Chevallier (in French; Paris: L'Ingénieur Chevallier, 1843), by Charles Chevalier (PDF at Wayback Machine) |
| TR73 .M43 2016 | The Chatter of the Visible: Montage and Narrative in Weimar Germany (Ann Arbor: University of Michigan Press, c2016), by Patrizia C. McBride |
| TR73 .P525 2021 | Photography in the Third Reich: Art, Physiognomy and Propaganda (Cambridge, UK: Open Book Publishers, c2021), ed. by Christopher Webster (multiple formats with commentary at Open Book Publishers) |
| TR140 .B263 D36 1994 | The Photographs of Édouard Baldus (New York: Metropolitan Museum of Art; Montreal: Canadian Centre for Architecture, c1994), by Malcolm R. Daniel, illust. by Edouard Baldus (page images and PDF with commentary at metmuseum.org and Google) |
| TR144 .S67 | The History and Practice of the Art of Photography, by Henry Hunt Snelling (Gutenberg text and illustrated HTML) |