Report of the Department of the Interior ... [with Accompanying Documents]., Volume 1U.S. Government Printing Office, 1914 |
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Página x
... explosives used in mining ... . 457 Investigations of the use of electricity in coal mining- 457 Investigations of safety lamps____ . 458 Investigations of mine - rescue and first - aid apparatus_ 458 Investigations of mineral waste ...
... explosives used in mining ... . 457 Investigations of the use of electricity in coal mining- 457 Investigations of safety lamps____ . 458 Investigations of mine - rescue and first - aid apparatus_ 458 Investigations of mineral waste ...
Página xii
... explosives . 495 Undercutting the coal . 497 Accidents due to electricity_ 497 Mine fires ___ . 498 Accidents due to coal slides or rushes 499 Falls of roof and coal____ 499 Flooding and caving accidents .. 499 Haulage accidents 500 ...
... explosives . 495 Undercutting the coal . 497 Accidents due to electricity_ 497 Mine fires ___ . 498 Accidents due to coal slides or rushes 499 Falls of roof and coal____ 499 Flooding and caving accidents .. 499 Haulage accidents 500 ...
Página xiii
... explosives used in mining Physical tests of explosives_ . Explosives chemical laboratory --- Corrosion of iron and steel in mine equipment _ - _ Mining investigations in the Lake Superior region___ Page . 520 520 522 523 Progress of ...
... explosives used in mining Physical tests of explosives_ . Explosives chemical laboratory --- Corrosion of iron and steel in mine equipment _ - _ Mining investigations in the Lake Superior region___ Page . 520 520 522 523 Progress of ...
Página 72
... explosives used in coal mining , with a view to deter- mining what modifications can be made in the manufacture of explo- sives with a view to reducing the accidents ; and in electricity to determine the nature of the electric ...
... explosives used in coal mining , with a view to deter- mining what modifications can be made in the manufacture of explo- sives with a view to reducing the accidents ; and in electricity to determine the nature of the electric ...
Página 73
... explosives for use in coal mines , improvements in electric and other mine installations , and the bringing about of a better cooperation between the miners and the mine owners in behalf of greater safety . The bureau has also done much ...
... explosives for use in coal mines , improvements in electric and other mine installations , and the bringing about of a better cooperation between the miners and the mine owners in behalf of greater safety . The bureau has also done much ...
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Outras edições - Ver todos
Report of the Department of the Interior ... [with Accompanying ..., Parte 1 United States. Dept. of the Interior Visualização completa - 1867 |
Report of the Department of the Interior ... [with Accompanying Documents]. United States. Dept. of the Interior Visualização completa - 1935 |
Termos e frases comuns
acres agricultural Alaska allotted amount applications appropriation approved areal assisted automobile building Bulletin Bureau of Mines California camp cent charge classification coal field Colorado completed Congress contour interval cooperation County Creek Dakota Department deposits district division economic geology ended June 30 engineer examination explosives farming feet fiscal year ended Five Civilized Tribes folio fuel funds geologic Geological Survey geologist Government granted grazing Idaho increase Indian Interior investigations July June 30 Lake Land Office ment Merced Grove mine-rescue mineral resources Montana Mount Rainier Mountainous National Park North operation Oregon patents pension permit plates prepared private nurse public lands quadrangle Railroad reconnaissance region reservation River road samples scale schools season Secretary South South Dakota square miles Stat stations stratigraphy submitted superintendent text figures timber tion topographic United Utah Valley Washington Water-Supply Paper Yosemite Yosemite National Park Yosemite Valley
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