Biennial Report, Volumes 1-21883 |
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Results 1-5 of 34
Page 16
... lights were blown out except the lantern which I carried . The result of this test was ninety - one thousand feet per minute , and everybody was satisfied , and none more so than the boss . And now , if there is any deficiency in the ...
... lights were blown out except the lantern which I carried . The result of this test was ninety - one thousand feet per minute , and everybody was satisfied , and none more so than the boss . And now , if there is any deficiency in the ...
Page 25
... light for his partner to work ; and in one instance I could not get within twenty or thirty feet of where the men were working , with a single light , on account of the carbonic acid gas ; but sixty - two of the miners made oath that ...
... light for his partner to work ; and in one instance I could not get within twenty or thirty feet of where the men were working , with a single light , on account of the carbonic acid gas ; but sixty - two of the miners made oath that ...
Page 53
... light carburetted hydrogen , and consists of one vol- ume of the vapor of carbon , and two volumes of hydrogen , con ... light . When ten per cent of black - damp is diffused through the air of a mine , a light cannot be maintained ; but ...
... light carburetted hydrogen , and consists of one vol- ume of the vapor of carbon , and two volumes of hydrogen , con ... light . When ten per cent of black - damp is diffused through the air of a mine , a light cannot be maintained ; but ...
Page 57
... Light blue sandstones . Blue clay shales ... Dark colored shales Light sand shales Dark bituminous shales .. Coal fault " rock and black jack Fire clay Marley shales Coal . Fire clay . Light colored shales Impure lime rock Light colored ...
... Light blue sandstones . Blue clay shales ... Dark colored shales Light sand shales Dark bituminous shales .. Coal fault " rock and black jack Fire clay Marley shales Coal . Fire clay . Light colored shales Impure lime rock Light colored ...
Page 58
... Light arenaceous shales . Dark arenaceous shales .. Light arenaceous shales .. Dark argillaceous shales .. Lime rock gray .. Light colored shales .. Dark shales charged with coal .. Feet . Inches . 3 Dark colored shales . Sulphur band ...
... Light arenaceous shales . Dark arenaceous shales .. Light arenaceous shales .. Dark argillaceous shales .. Lime rock gray .. Light colored shales .. Dark shales charged with coal .. Feet . Inches . 3 Dark colored shales . Sulphur band ...
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accident air-way Albia Angus appointed bituminous coal Bituminous shales black-damp Blue sand shales Boone county Boonesboro cage carbonic acid cause charge Coal and Mining Coal Company coal measures coal mines comply condition Coroner court creek cubic feet Dark death district dollars Drift deposit duties engine entry escape shaft examination feet per minute five furnace furnish Governor Gray clay shales hoisting shaft hole hundred feet Impure inches inspection inspector of mines jurors Kalo Keokuk county Kirkville labor Light limestone located Lucas county machinery Mahaska county map or plan MCELHANY miles miners mining boss Mining Company mining law Moines river oaths do say opening Oskaloosa Ottumwa owner or agent persons employed Polk county pressure proper railroad rock roof safety safety-lamp sandstone shaft or slope side superintendent therein thereof thickness thousand tion underground ventilation volume of air Wapello county William