i>o. 
407) 
71 
72 
73 
74 
75 
76 
466) 
77 
78 
79 
80 
81 
86 
87 
88 
89 
90 
91 
92 
93 
94 
95 
96 
97 
99 
100 
101 
102 
103 
104 
105 
106 
107 
108 
109 
110 
111 
112 
113 
114 
115 
116 
APPENDIX. 
II. GREENSTONES, PORPHYRIES, VOLCANIC-Continued. 
Name. 
Locality. 
Fort Point_ 
Trappean rock, ferruginous nucleus_.... 
Range next to the coast, October 31. 
Black vesicular lava_,_ 
Colorado desert, near Carrizo creek 
Light scoriae________ 
Tulare vallev, near Tulare lakes . _ 
Glassy scoriae, cellular_. ._ 
Colorado desert_ 
Compact red scoriae, with small cells_1_ 
Pumice stone_........._________ 
Cohuilla villages_ 
Volcanic slag, cinder._ ______............. 
Colorado desert_ 
Volcanic rock_____ 
Colorado desert, near Carrizo creek, Nov. 21. 
Epidote, from an igneous vein_ 
Fort Yuma, December 7_ 
Porphyry, green and compact_ 
Colorado desert_...___ 
Black volcanic rock from the drift_ 
Colorado desert, November 21..... 
III. STRATIFIED ROCKS. 
Yerba Buena island_ 
Marion island..». _ 
State’s Prison_ 
Blue sandstone, interior of a nodule_..._ 
Benicia_...__ 
Argillaceous and slaty sandstone_ __ ___ 
Alcatrass island_ _ 
Cube of brown sandstone __ ___ _ _ _ 
Benicia_ _____.... 
Shale, with lignite. __ __ __ __ __ _ 
Yerba Buena island-__ _ 
Jaspery rock, with white quartz veins ... _ ... 
Lime point _ __ _ _..... 
Jaspery rock, green 
Near Presidio, San Prancisco __ 
Jaspery rock, with white quartz veins 
Jaspery rock with yellow veins 
Lime point _ __ 
Conglomerate __ _ . _ _ _ _ 
Benicia_______ 
Pebbles from the conglomerate ____......_ 
.do . 
Sandstone..._ _ . __ __ _ 
Livermore’s Pass, west side__ 
_do__ _ _ 
Livermore*g Pass_„_..._ 
Argillaceous sandstone .............._................_... 
Sandstone containing pumice 
July 13. .-. 
Pumice stone_ 
Sandstone_ _ ___ _ _ _ _____ 
Stone house, July 21_ 
__do_ _____ _ __ ____ 
Stone house_______- 
White sandstone, upper stratum 
July 22..... 
Sandstone, colored red by oxide of iron, containing pebbles of white 
White sandstone ... 
"Red volcanic rock found in the sandstone 
Andalusite slate from the strata of sandstone__.... 
Chiastolite hill, Chowchillas river, July 23.. 
Argillaceous sandstone above clay.. 
