230 ANALYSES OF ROCKS AND MINERALS, 1880-1908. 
NEVADA. 
A. Grayish clay from upper Lahontan lake beds, Humboldt River bridge, Mill City. 
B. Grayish clay, lower Lahontan beds, same locality. Analyses by T. M. Chatard, 
record Nos. 32, 33. 
C. Adobe soil, Humboldt. Analysis by I.. G. Eakins, record No. 981. 
CALIFORNIA, WASHINGTON, HAWAIIAN ISLANDS. 
A. Sandy clay, Owens Lake, California. 
B. Blue clay, Owens Lake, California. Analyses by T. M. Chatard, record No. 551. 
C. Clay from foot of Rickey Hill, Kittle Falls, Stevens County, Washington. Analy- 
sis by W. F. Hillebrand, record No. 1428. 
D. Typical wheat soil, plateau south of Krupp, Washington. 
E. Residuary soil from basalt, Hausen Creek, Kittitas County, Washington. Analy- 
ses D and E by George Steiger, record No. 2028. 
F. Lava soil, Diamond Head, Hawaiian Islands. Analysis by L. G. Eakins, 
record No. 888. 
A B Cc D. E F 
SiOz... 54.92 | 62.74] 65.43] 52.95 32. 88 
AhOs 11.25] 16.45 | 13.96] 15.69 12.02 
Fe03 2.77 2. 62 5.35 || 11.85 11.52 
FeO 94 1) Oe | Means | Aaa cee 
MgO 4.91 2.41 1.54 2.04 11.70 
Cao. 8.76 3. 68 2.90 4. 40 12, 20 
Na,O 2.10 3.05 2, 42 2.09 | undet 
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