The Geologists Crosby of Boston: William Otis Crosby (1850-1925) and Irving Ballard Crosby (1891-1959)Massachusetts Institute of Technology, 1972 - Всего страниц: 175 |
Содержание
Hannah Everett Ballard A Remarkable Wife | 6 |
A Second Ascent of Grays Peak 14341 ft | 12 |
As Teacher at M I T 18751907 | 20 |
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abst Agates altitude Amer American Azoic Basalt beautiful beds Boston Basin Boston Soc Boston Society Bouvé Camp Canōn Catskill aqueduct Chalcedony Civil Engineers climb Colorado Colorado Rockies course Creek Crosby Papers Crosby's dam sites deposits early East Boston Tunnel Empire engineering geology father feet fossils furnace G'town geologist Georgetown Gerda Grand Gray's peaks Grays Peak Hales Bar Dam hills Hist Irving Ballard Crosby Jour journal lake lectures Lectureship limestone lode M.I.T. Institute Archives Massachusetts miles mill mineral mines morning mountains Museum Natural History Niagra night Paleontology park plains present author Professor Quart Report Review ridge River Rockies rocks Runkle sandstone Science shale side Silurian silver slope snow Society of Natural specimens spent spring stamp mill strata structural geology summit Tech temp Tertiary timber line tion trail Tunnel visited W. O. Crosby Wachusett Reservoir water supply William Otis Crosby yesterday