The ventilating-system at the Comstock mines, Nevada, by George J. Young, 1909.

A discussion of temperatures-surface, underground, and water; ventilating systems in general and in detail; measurements of ventilating currents-temperature and velocity; operating expense; underground humidity and heat; physiological effects of working in high temperature and humidity; and an appendix by P. Frandsen discussing physiological effects on miners as measured by blood tests

Originally a paper presented at the Spokane meeting of the American Institute of Mining Engineers, September 1909, and reprinted from AIME Bulletin, no. 35, November 1909 as University of Nevada Bulletin, v. 3, no. 4, October 1, 1909; additional information on Comstock mine engineering is available in B37 and B45.

Bulletin 3, 57 pages, 9x6", 15 b/w drawings, 32 tables, 1 appendix, $8.70