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040 _aUtSlPG
041 7 _aen
_2iso639-1
050 4 _aAP
100 1 _aVarious
245 1 0 _aAppletons' Popular Science Monthly, June 1899 :
_bVolume LV
264 1 _aSalt Lake City, UT :
_bProject Gutenberg,
_c2014
300 _a1 online resource :
_bmultiple file formats
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
500 _aRelease date is 2014-03-11
508 _aProduced by Judith Wirawan, Greg Bergquist and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
520 _a"Appletons' Popular Science Monthly, June 1899" by Various is a scientific publication produced in the late 19th century. This periodical aims to disseminate scientific knowledge and discussions on various contemporary scientific topics, reaching a wider audience through accessible writing and insightful articles. The focus is on advancing public understanding of the natural world, featuring detailed analyses and studies relevant to the societal context of the time, such as geological methods for estimating the age of natural wonders like Niagara Falls. The opening of this edition showcases an article by G. Frederick Wright that discusses a new method for estimating the age of Niagara Falls. It delves into the historical estimates made by prominent geologists, comparing them to new measurements that suggest a more accurate timeline based on geological surveys and the erosion of the falls. The discussion emphasizes the significance of these findings in understanding the geological history of the region and how they can alter the previous assumptions about the falls' age, engaging readers with a mix of historical context and modern scientific inquiry. (This is an automatically generated summary.)
534 _nOriginal publication data not identified
653 _aScience -- Periodicals
653 _aTechnology -- Periodicals
700 1 _aYoumans, William Jay,
_d1838-1901
856 4 0 _uhttps://www.gutenberg.org/ebooks/45115
999 _c85954
_d85954