quantity of coal mined, and the number of persons ordinarily
employed at, in, and around such mine, distinguishing the persons
below and above ground, and give such other information as required
by such blanks. (Penalty, Sec. 976.)


Sec. 941. [=Test weights to be provided.=] The owner, lessee or
agent of a coal mine, at which the earnings of ten or more persons
depend upon the weights of coal mined, shall provide and keep
accessible for the purpose of testing the weigh scales as provided
elsewhere in this act, the following standard test weights, properly
sealed: Where the coal mined is weighed upon hopper or pan scales,
two standard test weights of fifty pounds each; where the coal mined
is weighed upon railroad track scales, ten standard test weights of
fifty pounds each. (Sec. 910.)


[=Owner, lessee or agent shall provide safety lamps.=] The owner,
lessee or agent of a mine generating fire-damp, so as to be detected
by a safety lamp, shall keep on hand in proper condition for use,
not less than four approved safety lamps, and upon request of the
district inspector of mines, shall provide such additional safety
lamps as in his judgment may be required to meet any probable
emergency.


[=Owner, lessee or agent shall provide shields on mining machines.=]
The owner, lessee or agent of a mine, shall provide and maintain a
sufficient shield on each mining machine used in such mine, as may
be authorized by the chief inspector of mines, or the district