A bulletin on the mineral dumortierite, by the Mackay School of Mines staff, 1928.

The mineralogy of dumortierite by O. R. Grawe;
The geology of the deposits of dumortierite in Humboldt Queen Canyon, Pershing County, Nevada, general geology by J. C. Jones;
Megascopic mineralogy by O. R. Grawe;

Petrography by J. C. Jones;

Origin of the deposit by J. C. Jones;
The mining of dumortierite by Jay A. Carpenter;
Ore dressing tests by Walter S. Palmer; and
Dumortierite bibliography by O. R. Grawe.

Originally published as University of Nevada Bulletin, v. 22, no. 2, March 15, 1928.

Bulletin 8, 47 pages, 9x6", 3 tables (including 1 oversized foldout), $7.20