Government Technical Reports
FOCUS
On Global Resources
Fall 2010 | Volume 30, Number 1 | Download PDF
Government Technical Reports
!["Equipment for testing safety devices of electric miner’s lamp in explosive mixture of gas and air." From U.S. Department of
Commerce Bureau of Mines Bulletin 131: Approved Electrical Lamps for Miners by H. H. Clark and L. C. Isley (Washington, D.C.:
U.S. Government Printing Office, 1917). From TRAIL collections.](https://www.crl.edu/sites/default/files/d6/images/focus/technicalreports.png)
"Equipment for testing safety devices of electric miner’s lamp in explosive mixture of gas and air." From U.S. Department of
Commerce Bureau of Mines Bulletin 131: Approved Electrical Lamps for Miners by H. H. Clark and L. C. Isley (Washington, D.C.:
U.S. Government Printing Office, 1917). From TRAIL collections.