Project Gutenberg 2025-02-19 Public domain in the USA. 152 Cox, George (Optician) Spectacle secrets Second edition. $aLondon :$bGeorge Cox, $c1844. Bob Taylor, deaurider and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "Spectacle Secrets" by George Cox is a practical guide on the usage and selection of spectacles, written in the mid-19th century. The text addresses the prevalent issues of quackery within the optical trade, aiming to empower readers with factual information about eyewear to protect them from deception and fraud. With the focus on the history of spectacles and understanding how they function to support various visual impairments, it serves as both an informative treatise and a consumer warning. At the start of "Spectacle Secrets," the author discusses the historical context of spectacles and raises concerns about the misleading practices of some opticians. He emphasizes the importance of understanding how the eye works and the necessity of properly fitting lenses to maintain sight. Cox outlines the various types of lenses and their functions, subsequently cautioning readers against common scams, such as those who overcharge for subpar glasses. His aim is clear: to educate the public so they may make informed decisions when it comes to purchasing eyewear and avoid falling prey to unscrupulous sellers. (This is an automatically generated summary.) https://archive.org/details/b31911778 20240105094320cox 1844 GB Reading ease score: 49.6 (College-level). Difficult to read. en Eyeglasses RE Text Category: History - Other Category: How To ... Category: Health & Medicine 174489 2025-06-30T03:32:52.789350 text/html 148446 2025-02-19T15:59:36 text/html 362489 2025-06-30T03:32:57.473378 application/epub+zip 360895 2025-06-30T03:32:54.089382 application/epub+zip 307343 2025-06-30T03:32:53.369360 application/epub+zip 1115414 2025-06-30T03:32:59.992323 application/x-mobipocket-ebook 1097297 2025-06-30T03:32:56.882339 application/x-mobipocket-ebook 144359 2025-06-30T03:32:52.252376 text/plain; charset=us-ascii 124505 2025-02-19T15:59:36 text/plain; charset=us-ascii 15123 2025-06-30T03:33:00.142320 application/rdf+xml 22404 2025-06-30T03:32:53.590369 image/jpeg 3193 2025-06-30T03:32:53.478336 image/jpeg 735975 2025-06-30T03:32:52.827363 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