Project Gutenberg 2008-12-10 Public domain in the USA. 241 William Gaertner and Company Astronomical Instruments and Accessories Produced by Matthew Rongey, Brownfox and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "Astronomical Instruments and Accessories" by William Gaertner and Company is a scientific publication likely written during the early 20th century. The book serves as a catalog detailing various astronomical instruments and accessories manufactured by the company, showcasing their specialized equipment aimed at both professional and amateur astronomers. The catalog reflects the advancements in optical technology and instrument design of its time, offering insight into the tools available for astronomical observations. The content of the book is primarily a comprehensive catalog of astronomical instruments, including telescopes, mounting systems, chronographs, spectroscopes, and various accessories. Each item listed is accompanied by a detailed description, specifications, and pricing, aimed at educating potential customers about the quality and capabilities of the instruments. The introduction expresses the company's commitment to providing high-quality products tailored to the specific needs of their clients, highlighting their collaboration with prominent astronomers and research institutions. In essence, this catalog is not only a commercial offering but also a reflection of the scientific community's engagement with modern astronomical research and observation technologies. (This is an automatically generated summary.) Reading ease score: 66.4 (8th & 9th grade). Neither easy nor difficult to read. en Astronomical instruments -- Catalogs QB Text Astronomy Category: Science - Physics Category: Engineering & Technology 71056 2025-10-11T09:16:39.256679 text/html 65335 2021-01-04T11:52:23 text/html 1081434 2025-10-11T09:16:45.288683 application/epub+zip 1080082 2025-10-11T09:16:42.543722 application/epub+zip 88496 2025-10-11T09:16:41.315660 application/epub+zip 1262478 2025-10-11T09:16:47.252652 application/x-mobipocket-ebook 1247165 2025-10-11T09:16:44.499665 application/x-mobipocket-ebook 238804 2022-09-12T14:52:12.269839 application/x-mobipocket-ebook 52265 2025-10-11T09:16:38.832699 text/plain; charset=us-ascii 52115 2021-01-04T11:52:23 text/plain; charset=us-ascii 52116 2021-01-04T11:52:23 text/plain; charset=us-ascii 1782370 2007-04-20T17:21:28 application/octet-stream 28547 2007-04-20T17:21:28 application/octet-stream 71661 2007-04-20T17:21:28 application/octet-stream 128528 2007-04-20T17:21:28 application/octet-stream 80941 2008-10-04T10:28:16 application/octet-stream 103207 2007-04-20T17:21:28 application/octet-stream 93099 2007-04-20T17:21:28 application/octet-stream 121267 2007-04-20T17:21:28 application/octet-stream 95195 2007-04-20T17:21:28 application/octet-stream 115174 2007-04-20T17:21:28 application/octet-stream 55504 2008-10-04T10:28:30 application/octet-stream 123053 2007-04-20T17:21:28 application/octet-stream 122796 2007-04-20T17:21:28 application/octet-stream 94463 2008-10-04T10:28:42 application/octet-stream 188395 2007-04-20T17:21:28 application/octet-stream 89461 2007-04-20T17:21:28 application/octet-stream 82447 2008-10-04T10:28:54 application/octet-stream 123235 2007-04-20T17:21:28 application/octet-stream 151921 2007-04-20T17:21:28 application/octet-stream 172100 2007-04-20T17:21:28 application/octet-stream 90244 2007-04-20T17:21:28 application/octet-stream 146848 2007-04-20T17:21:28 application/octet-stream 123051 2007-04-20T17:21:28 application/octet-stream 161779 2007-04-20T17:21:28 application/octet-stream 168839 2007-04-20T17:21:28 application/octet-stream 82225 2007-04-20T17:21:28 application/octet-stream 129969 2007-04-20T17:21:30 application/octet-stream 122895 2008-10-04T10:30:04 application/octet-stream 101843 2007-04-20T17:21:30 application/octet-stream 88689 2008-10-04T10:30:14 application/octet-stream 97001 2007-04-20T17:21:30 application/octet-stream 888742 2008-10-04T10:30:18 application/octet-stream 711016 2008-10-04T10:30:20 application/octet-stream 45899 2025-10-11T09:16:47.418640 application/rdf+xml 20379 2025-10-11T09:16:41.838667 image/jpeg 4580 2025-10-11T09:16:41.587699 image/jpeg 18115 2021-01-04T11:52:23 application/octet-stream application/zip 958827 2021-01-04T11:52:23 application/octet-stream application/zip 18099 2021-01-04T11:52:23 application/octet-stream application/zip 1062831 2025-10-11T09:16:39.325670 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