Project Gutenberg 2017-12-10 Public domain in the USA. 220 Capron, J. Rand 1829 1888 Capron, John Rand 05012324 Auroræ: Their Characters and Spectra I. The aurora and its characters -- II. The spectrum of the aurora -- III. Magneto-electric experiments in connexion with the aurora. Produced by Chris Curnow and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "Auroræ: Their Characters and Spectra" by J. Rand Capron is a scientific publication written in the late 19th century. The volume delves into the phenomena of the Aurora Borealis, discussing its various forms, colors, and spectra while providing historical observations and scientific analyses. Through vivid descriptions and historical context, Capron aims to enhance understanding and provoke further investigation into the captivating natural phenomenon of the northern lights. The opening of the book introduces the Aurora Borealis with an evocative quote from Longfellow about the beauty of the northern lights, setting a tone of wonder and intrigue. Capron reflects on how these spectacular displays have fascinated both scientists and casual observers alike throughout history. In the preface, he acknowledges the significance of past observations and previous works and explains his motivations for publishing this comprehensive treatise. He discusses the need for a more detailed and illustrated account of Auroras and emphasizes the ongoing mysteries surrounding their spectra, thus establishing a foundation for exploration in the subsequent chapters. (This is an automatically generated summary.) Reading ease score: 62.0 (8th & 9th grade). Neither easy nor difficult to read. en Auroras QC Text Category: History - Other Category: Science - Physics Category: Environmental Issues 665319 2025-07-22T10:41:08.724223 text/html 652911 2024-10-23T02:59:47 text/html 2523904 2025-07-22T10:41:20.969659 application/epub+zip 2527775 2025-07-22T10:41:11.055222 application/epub+zip 262122 2025-07-22T10:41:09.851232 application/epub+zip 2699856 2025-07-22T10:41:27.255613 application/x-mobipocket-ebook 2660163 2025-07-22T10:41:19.417668 application/x-mobipocket-ebook 420086 2022-08-25T09:48:33.296525 application/x-mobipocket-ebook 574033 2025-07-22T10:41:06.887202 text/plain; charset=us-ascii 554154 2024-10-23T02:59:47 text/plain; charset=us-ascii 16669 2025-07-22T10:41:27.430605 application/rdf+xml 7286 2025-07-22T10:41:09.979195 image/jpeg 1574 2025-07-22T10:41:09.916200 image/jpeg 2281973 2025-07-22T10:41:08.913187 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 en.wikipedia