Report of the Bureau of Mines of the Department of Internal Affairs of ...

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262 REPORT OF THE INSPECTORS OF MINES. Off. Doc.
that a nuiiibv'i- were due to ij;noi'aiice on the part of the unfortunates
themselves of tbe dangers incident to the mining of coal or to the violation
by them of orders given. ANliile others could be classed as
purely accidental, and which could not have been averted.
I
have, in another part of this report, given a statement of each of
the fatal accidents to which your attention is called.
Summary of Statistics, 1897.
Number of mines in the district, 72
Kumber of mines operated during the year
GO
Number of miues idle during the year, (5
Number of mines ojjened during the year, 2
Number of mines dropped from the report during the
year, 2
Number of persons employed inside the mines, 9,326
Number of persons employed outside the mines, 2,04G
Total number of persons employed 12,272
Number of tons (2,000 1T)S.) of coal mined during the
year, 9,1.34,797
Number of tons (2,000 Ihs.) of coal used for steam and
heat, 181,313
Number of tons (2,000 lbs.) of coal sold to local trade
and used by employes, 104,597
Number of tons (2,000 lt)S.) of coal shij)]»ed during the
year, 5,147,825
Nund)er of tons (2,000 lt)s.) of coke produced during the
year, 2,505,350
Number of tons of coal mined for each fatal accident, . . 434,990.3
Number of tons of coal mined for each non-fatal accident,
'
175,()G9 .
Number of persons employed for each fatal accident, . . 584.38
Number of ]»ersons emjiloyed for each non-fatal accident,
236
Number of horses and mules in use 1,102
Number of steam h)c()m(>lives in use inside (lie mines, 4
Number of steam locomotives in use outside (lie iiiiiu's, 20
Number of electiic nu)tors in use inside the mines 2
Number of comitressed air l(>(