000			02145cam a22003013u 4500
001			50383
003			UtSlPG
005			20260610134146.0
006			m
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040			_aUtSlPG
041		7	_aen _2iso639-1
050		4	_aG
100	1		_aVarious
245	1	4	_aThe National Geographic Magazine, Vol. I., No. 3, July, 1889
264		1	_aSalt Lake City, UT : _bProject Gutenberg, _c2015
300			_a1 online resource : _bmultiple file formats
336			_atext _btxt _2rdacontent
337			_acomputer _bc _2rdamedia
338			_aonline resource _bcr _2rdacarrier
500			_aRelease date is 2015-11-04
508			_aProduced by Ron Swanson
520			_a"The National Geographic Magazine, Vol. I., No. 3, July, 1889" by Various is a scientific publication written in the late 19th century. This edition of the magazine features a diverse array of articles focused on geographical topics, including detailed studies of the rivers and valleys of Pennsylvania, geological histories, and topographic models. The likely topics within encompass cartography, hydrology, and regional geological transformations that have shaped the landscape over time. The opening of this volume introduces an article by William Morris Davis titled "The Rivers and Valleys of Pennsylvania," which sets the stage for an extensive exploration of the state's river systems. In the introduction, Davis outlines a systematic study aimed at uncovering the causes of the current river courses and tracing their evolutionary history from the prehistoric period of elevation above the sea to the present configuration. He emphasizes the importance of understanding the geological framework and previous research while outlining the general conditions of Pennsylvania's topography and its drainage patterns, preparing readers for a deeper examination of the interrelationship between the land and its waterways. (This is an automatically generated summary.)
534			_nOriginal publication data not identified
653			_aGeography -- Periodicals
856	4	0	_uhttps://www.gutenberg.org/ebooks/50383
999			_c91221 _d91221