02199cam a22002893u 450000100060000000300070000600500170001300600020003000700050003200800410003704000110007804100170008905000070010610000240011324500650013726400510020230000470025333600260030033700260032633800360035250000310038850801960041952011900061553400450180565300160185085600430186662923UtSlPG20260610134441.0mcr n260607r2020||||utu|||||o|||||||||||||| d  aUtSlPG 7aen2iso639-1 4aQD1 aLevy, Stanley Isaac14aThe Rare Earths: Their Occurrence, Chemistry, and Technology 1aSalt Lake City, UT :bProject Gutenberg,c2020  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  aRelease date is 2020-08-13  aProduced by deaurider, Harry Lamé and the Online Distributed
Proofreading Team at https://www.pgdp.net (This file was
produced from images generously made available by The
Internet Archive)  a"The Rare Earths: Their Occurrence, Chemistry, and Technology" by Stanley Isaac Levy is a scientific publication written in the early 20th century. This work delves into the rare earth elements, exploring their natural occurrences, chemical properties, and technological applications, with a focus on advancements in industries such as incandescent lighting.   At the start of the text, the author outlines the historical significance of rare earth elements, mentioning how Dr. Auer von Welsbach's application of rare earths revolutionized the incandescent mantle industry in 1885. The opening chapters present the evolution of knowledge surrounding these elements, tracking their classification, occurrences in minerals, and initial scientific investigations. Levy emphasizes the progress made over the prior thirty years, highlighting the complexities of classifying rare earths and the necessity of improved access to relevant literature for both educators and students in the field. This groundwork sets the stage for a detailed exploration of the chemistry, production, and various applications of these minerals in modern technology. (This is an automatically generated summary.)  nOriginal publication data not identified  aRare earths40uhttps://www.gutenberg.org/ebooks/62923