000 00754cam a22002171 4500
001 gs 27000056
003 DLC
005 20260227111331.0
008 920604s1926 enkaf f000 0 eng c
010 _ags 27000056
035 _a(OCoLC)25937148
040 _aLibrary, U.S. Geological Survey
_cCSt
_dDLC
050 0 0 _aTN295
_b.G65 no. 23
100 1 _aHay, Peter Stewart,
_d1884-
245 1 2 _aA method of trapping the dust produced by pneumatic rock drills,
_cby P.S. Hay. With a preface, by Professor J.S. Haldane ...
260 _aLondon,
_bH.M. Stationery Off.,
_c1926.
300 _a18 p.
_b2 fold. pl., diagrs.
_c25 cm.
490 0 _a[Gt. Brit.] Safety in Mines Research Board. Paper
_vno. 23
650 0 _aMine safety.
650 0 _aRock-drills.
999 _c26539
_d26539