Project Gutenberg 2007-12-24 Public domain in the USA. 420 Duchochois, Peter C. Photographic Reproduction Processes "Photographic Reproduction Processes" by Peter C. Duchochois is a practical treatise on various photographic techniques and methods written in the late 19th century. The book explores processes for making photographic prints without using silver salts, describing multiple procedures including cyanotype, uranotype, and others. It serves as a comprehensive guide for photographers and artists who are interested in understanding and applying these techniques in their work. The opening of the text provides a broad overview of ten different photographic processes, emphasizing the significance of chemical reactions pertaining to light exposure and the materials used. It highlights the foundational principles laid out by notable figures like Sir John Herschel and Mr. C. J. Burnett regarding the use of iron and uranium salts. Additionally, the introduction discusses the necessary preparations and outcomes, such as the stunning blue prints produced by the cyanotype process, while also giving practical details on implementation. It sets the stage for what promises to be an insightful examination of historical photographic practices. (This is an automatically generated summary.) Reading ease score: 54.7 (10th to 12th grade). Somewhat difficult to read. en Photographic reproduction of plans, drawings, etc. Photography -- Printing processes TR Text Photography Browsing: Computers & Technology Browsing: Engineering & Construction Category: Engineering & Technology Category: Art 346582 2025-06-10T06:02:44.627504 text/html 359223 2007-12-24T09:57:28 text/html; charset=utf-8 147493 2007-12-24T09:57:29 text/html; charset=utf-8 application/zip 235359 2025-06-10T06:02:54.393447 application/epub+zip 241554 2025-06-10T06:02:48.390482 application/epub+zip 722291 2007-12-24T09:57:55 application/pdf 253360 2007-12-24T09:57:55 application/pdf application/zip 151509 2025-06-10T06:02:46.875468 application/epub+zip 440433 2025-06-10T06:02:58.374421 application/x-mobipocket-ebook 418482 2025-06-10T06:02:53.414444 application/x-mobipocket-ebook 179575 2022-09-11T08:04:24.356875 application/x-mobipocket-ebook 222437 2025-06-10T06:02:43.673524 text/plain; charset=us-ascii 223172 2020-06-20T20:22:40 text/plain; charset=utf-8 75136 2020-06-20T20:22:40 text/plain; charset=utf-8 application/zip 223459 2007-12-24T09:57:55 text/plain; charset=iso-8859-1 74971 2007-12-24T09:57:56 text/plain; charset=iso-8859-1 application/zip 223470 2007-12-24T09:57:55 text/plain; charset=us-ascii 74923 2007-12-24T09:57:56 text/plain; charset=us-ascii application/zip 25645 2025-06-10T06:02:58.518468 application/rdf+xml 241372 2007-12-24T09:57:55 application/prs.tei 133675 2007-12-24T09:57:56 application/prs.tei application/zip 17651 2025-06-10T06:02:47.480455 image/jpeg 4069 2025-06-10T06:02:47.158465 image/jpeg 228462 2025-06-10T06:02:44.653524 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog