Project Gutenberg 2010-10-31 Public domain in the USA. 201 Wright, Lewis 1838 1905 Wright, Russell Stuart Wright, Russell S. Optical Projection. Part 1: The Projection of Lantern Slides Produced by Chris Curnow, Keith Edkins and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "Optical Projection. Part 1: The Projection of Lantern Slides" by Lewis Wright is an instructional treatise on the use of optical lanterns for exhibition and scientific demonstration, written in the early 20th century. The book delves into the various aspects of lantern slide projection, providing technical insights and practical advice for users ranging from educators to social workers. It aims to assist readers in selecting and utilizing different types of lantern equipment effectively. The opening of the work introduces the concept of lantern projection, categorizing it into two main branches: the projection of lantern slides and the scientific demonstration of opaque and microscopic objects. The author discusses the importance of different components of an optical lantern, such as the slide-holder, lens, condenser, light source, and the lantern's structural body. It emphasizes the significance of selecting appropriate lighting options, detailing the advantages and disadvantages of various illuminants like electric, acetylene, and oil-based sources. This foundational information sets the stage for more detailed exploration of individual lantern components and their functionality in subsequent chapters. (This is an automatically generated summary.) Reading ease score: 50.4 (10th to 12th grade). Somewhat difficult to read. en Lantern projection Q Text Category: Engineering & Technology Category: How To ... 224810 2025-08-14T03:58:28.298992 text/html 220190 2010-10-31T12:05:20 text/html 9508106 2025-08-14T03:58:42.435940 application/epub+zip 9488682 2025-08-14T03:58:33.885967 application/epub+zip 141501 2025-08-14T03:58:31.323962 application/epub+zip 9565711 2025-08-14T03:58:48.063389 application/x-mobipocket-ebook 9527194 2025-08-14T03:58:39.184925 application/x-mobipocket-ebook 240431 2022-09-15T12:27:07.636983 application/x-mobipocket-ebook 167881 2025-08-14T03:58:27.234003 text/plain; charset=us-ascii 167648 2010-10-31T12:03:58 text/plain; charset=us-ascii 167662 2010-10-31T12:03:30 text/plain; charset=us-ascii 20114 2025-08-14T03:58:48.260378 application/rdf+xml 24657 2025-08-14T03:58:31.854988 image/jpeg 4651 2025-08-14T03:58:31.587968 image/jpeg 59177 2010-10-31T12:05:40 application/octet-stream application/zip 9335067 2010-10-31T12:05:40 application/octet-stream application/zip 59148 2010-10-31T12:05:40 application/octet-stream application/zip 9447101 2025-08-14T03:58:28.483017 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