Information Circular1970 |
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application ash utilization asphalt autoclaved binder boiler slag bottom ash Bureau of Mines calcium chloride carbon chemical clay coal compressive strength concentration concessionaire concrete containing cost cubic employment data experience and employment exploitation concession exploration Fatal figure fly ash granted Gypsum handling material haulage hectares holder ignition industry Injury experience Kostolac lease license lignite lime limestone million man-hours Mills Grand total mines and mills mines Open pit mines Other surface mining Total mining mixtures mortars nonmetal nonmetal mines obtained Open pit mines operations particle permit petroleum plant portland cement potash pozzolanic production properties pyrophyllite respirable dust royalty sampling cycle sand short tons sieve sintered Slips or falls specifications Sulfur surface mining surface mining Total Surface Total mining TABLE temperature tests tion tons Total mining activities Total or average Underground mines Open Underground Surface Total wollastonite
Popular passages
Page 13 - All valuable mineral deposits in lands belonging to the United States, both surveyed and unsurveyed, are hereby declared to be free and open to exploration and purchase, and the lands in which they are found to occupation and purchase, by citizens of the United States...
Page 3 - And thereby hangs my moral tale. The trail was taken up next day By a lone dog that passed that way. And then a wise bellwether sheep Pursued the trail o'er vale and steep, And drew the flock behind him, too, As good bellwethers always do. And from that day o'er hill and glade, Through those old woods a path was made...
Page 13 - S. 424, of course, deals only with those lands under the jurisdiction of the Bureau of Land Management in the Department of the Interior.
Page 3 - This crooked lane became a road, Where many a poor horse with his load Toiled on beneath the burning sun, And traveled some three miles in one. And thus a century and a half They trod the footsteps of that calf. The years passed on in swiftness fleet, The road became a village street; And this, before men were aware, A city's crowded thoroughfare; And soon the central street was this Of a renowned metropolis; And men two centuries and a half Trod in the footsteps of that calf.
Page 66 - When the daily noise exposure is composed of two or more periods of noise exposure of different levels, their combined effect should be considered, rather than the individual effect of each. If the sum of the folIowing fractions: C1/T1+C2/ T2 " * * Cn/Tn exceeds unity, then, the mixed exposure shouId be considered to exceed the limit value.
Page 3 - Each day a hundred thousand rout Followed the zigzag calf about ; And o'er his crooked journey went The traffic of a continent. A hundred thousand men were led By one calf near three centuries dead.
Page 66 - I of this section, feasible administrative or engineering controls shall be utilized. If such controls fail to reduce sound levels within the levels of the table, personal protective equipment shall be provided and used to reduce sound levels within the levels of the table.
Page 66 - Cn/Tn exceeds unity, then, the mixed exposure should be considered to exceed the limit value. Cn indicates the total time of exposure at a specified noise level, and Tn indicates the total time of exposure permitted at that level. Exposure to impulsive or impact noise should not exceed 140 dB peak sound pressure level. [34 FR 7946, May 20, 1969, as amended at 35 FR 1015, Jan. 24, 1970] Subpart C — Radiation Standards § 50-204.20 Radiation — definitions. As used in this subpart: (a) "Radiation...
Page 2 - One day through the primeval wood a calf walked home as good calves should; But made a trail all bent askew, A crooked trail as all calves do. Since then, three hundred years have fled, And, I infer the calf is dead.
Page 2 - Since then two hundred years have fled, And, I infer, the calf is dead. But still he left behind his trail, And thereby hangs my moral tale. The trail was taken up next day By a lone dog that passed that way; And then a wise bell-wether sheep Pursued the trail o'er vale and steep. And...