SLATES AND SHALES. 217 
NEW MEXICO. 
Shales from Hermosa. Collected by ©. H. Gordon. Analyses by G. Steiger, 
record No, 2239. 
ZrO2, SrO, BaO absent. 
ARIZONA. 
Shales from the Morenci district, collected by W. Lindgren. Analyses by W. F. 
Hillebrand, record No. 1997. Described in P. P. 43, p. 180. 
A. Fresh, black, Devonian shale, near Longfellow mine. 
B. Same locality, adjoining dike. The result of contact metamorphism. 
is 
w 
Bg 
Es, “OGL ie NO ous 
BSBLVENESEE 
COz and SO:z are both absent. 
CALIFORNIA. 
Cretaceous shales from Mount Diablo. Described by Turner and Melville, Bull. 
Geol. Soc. America, vol. 3, pp. 383-414. Analyses by W. H. Melville, made in the 
laboratory at San Francisco, except F (record No. 1166), which was done in the Wash- 
ington laboratory. 
A. Brownish black, resinous. From Bagley Canyon. 
