1900 - Coalmininghistorypa.org

No. 11. BUREAU OF MINES. xiii
year transmit to the Chief of the Bureau of .Mines a supplemental
map or plan showing all excavations, changes and additions made
in such mine during the year, drawn to the scale as the first mentioned
map or plan. All such maps or plans to be and remain in the
Bureau of Mines as a pari of the records of said office."
I would respectfully ask thai this section be amended to read:
"At the written request of (he Chief of the Bureau of Mines the Inspector
of each district shall deposit with him within thirty days
from date of demand an accurate map or plan of any coal mine or colliery
required, which must be no tracing- cloth drawn to a scale of not
more than one hundred Tee), and not less than four hundred feet to the
inch,
said map or plan shall accurately show the tidal elevations of
the mouths of all shafts, tunnels, slopes, planes, main headings or
gangways, cross headings, rooms or breasts in each strata operated,
or that has been operated; all
the sumps, pumps and fans, or other
ventilating appliances, the course and direction of main air currents,
the relation and proximity of the workings of such coal mines to all
adjoining coal mines or coal lands, and it must also show 7 the tidal
elevations of the bottom of all shafts and slopes, the main headings
or gangways, and at the face of each working place near to or approaching
boundary lines of adjacent mines or coal lands; and on or
before the close of each calendar year transmit to the Chief of the
Bureau of Mines a supplemental map or plan, showing all excavations
changes and additions made in each mine during the year,
all the tidal elevations as required in preceding part of section. All
drawn to the same scale as the first mentioned map or plan, giving
such maps or plans to be and remain in the Bureau of Mines as a
part of the records of said office."
I would respectfully ask for the foregoing amendment, as said
original section of the law creating the Bureau of Mines provides
that copies of the maps of all the coal mines in this State shall be
deposited in this office, and as there are several thousand of such
maps in this State, the greater number of which would be of no use
to the Bureau, even if there were loom to store them, and enough
money appropriated to have copies made. To comply with this
section the Inspectors would be either obliged to make tracings
themselves or pay for having them made, which evidently was not
the intention of the act. If the Inspectors were lo do this work
themselves, they would have little or no time to attend to the mos!
important part of their duty, viz: making inspections. Aj9 il is, the
Bureau of Mines has not been furnished with the maps and information
as contemplated by the act. The assistant asked for in Section
7 should, besides being a mining engineer, be also a draughtsman,
who could copy maps and supplemental maps from the ones deposited
in this office by the district inspectors. The necessity for