What people are saying - Write a review
We haven't found any reviews in the usual places.
Relation of industrial buildings to health of employees
Noise as a cause of lowered efficiency
15 other sections not shown
A. H. Fay accidents acetylene analysis apparatus asphyxiation benzene blast branch circuits Bulletin Bureau of Mines burner butane carbon dioxide carbon monoxide cause cent check cabin Circular Clarence Hall cleaning coal mines combustion compiled by A. H. connected copper danger deposits determined detonators distillate drill dust catcher electric employees equipment ethane ethylene fatalities feet figs firing fractional distillation Fractionated furnace G. A. Burrell gases H. H. Clark heating plate hoist holes hydrocarbons illuminants injuries Jasper County Joplin district leaks liquid air mesothorium metal method miners mixture monazite natural gas obtained operation oxygen paraffin particles permissible explosives pipe Pittsburgh plant precautions prevent propane quantity quarry removed residue rock dust safety sample sand separation shot-firing circuit shot-firing system shovel source of power stove surface switches Technical Paper temperature tests thermocouple thorium tion tube tuberculosis underground valve vapor pressure ventilation Volume wires