VIII 
INDEX. 
O. 
Tage. 
Oak trees__-.125 
at Fort Miller_ 20 
of the Tejon.-. 38 
of the Canada de las TJyas. 47 
like Quercus imbricaria _'__. 126 
Oats.-. 10 
Obsidian.. 56 
Ocoya Creek Miocene strata ....- 164 
Olive trees.—1. 74 
Orange trees_ 74 
Origin of the Ancient Lake_236 
Orography of California_ 133 
Ostrea .73.108 
Ostrea Heermanni_ 176 
Ostrea Vesper tina. 176 
Otaria.-. 4 
Outlines of mirage___108 
Outcrops of limestone in the Canada de las Uvas.. 47 
Overflow of la.va_ 23 
Overlapping of the ranges of the Coast Mountains-139 
Oxide of iron in the strata of Ocoya Creek-168 
Oxyrhina plana_ 171,172 
Oxyrhina tumula__-.171,172 
P. 
Pacheco’s Peak_ 140 
Padre Zalvidea __ 79 
Pai Ute range.141,142 
Palm Springs. 122 
Palm trees at San Fernando_ 75 
Palm tree at the Warm Spring, Colorado Desert. 95 
Panama- 2 
Pandora. 179 
Parallelism of ranges- 141 
Pass of San Bernardino....89, 90 
Pass of San Francisquito----— 55 
Passes in the Sierra Nevada, elevation of .. 135 
Pebbles on the Desert_ 104 
Pebbles, polished by sand on the Desert ..108,117 
Pecten.1,73 
Pecten catillifornis_ 170 
Pecten Nevadanus_ 170 
Pectens, Carrizo Creek_ 108 
Pectens in the strata at Ocoya Creek- 171 
Pecten found on the surface of the Desert. 104 
Pegmatite_ 57 
Peninsula, Sierra-134,137,138 
Peninsula of California- 3 
Peniietta speloeum_ 186 
Peroxide of iron, Burns’ Creek- 14 
Perpetual snow, southern limit of—. 135 
Petricola Pedroana.. 186 
Phoca.-. 4 
Pholadkke._ 186 
Pholas-- 187 
Physa.-. 97 
Pilot Knob.-.110,112 
Pine forests...-.257 
Page. 
Pine trees of Monterey... 3 
at San Felipe.... 124 
Pinus lambertiana.. 264 
Pinite, or “Pine Sugar”... 264 
Pinnacles of sandstone___ 86 
Pipiguna River___ 27 
Pitch Springs. 75 
Placer mining at Forest Hill. 262 
by the hydrauliG method. 265, 266 
at Nevada. 268 
at Georgetown. 272 
at Cement Hill.. 274 
Plains of the San Joaquin. 28 
of the Tulares .. 28 
Plain of San Fernando.. 75 
of polished pebbles... 117 
of lava... 21 
Planes of structure in the lava of Fort Miller_21,22 
Plane tree along Johnson’s River_ 65 
Planorbis, found on the Colorado Desert_ 97 
Plants, silicified stems of_36,37 
Platiniridium. 300 
Plateaux of tertiary, or post tertiary formations.277 
Pleurotomatransmontana_ 170 
Ocoyana .. 170 
Pliocene of Ocoya creek_ 34 
Plumbago.209 
Point Conception.. 3 
Pinos, Monterey.3,180 
Lobos, sandstone of... 145 
Polarity of basaltic lava_ 21 
Polished pebbles of the Desert_108,112 
Polythalamia .. 182 
Poole’s Ferry, King’s River... 25 
Poole, Charles H., observations on the northern part of 
the Desert. 234 
description of Soda Springs....245 
Porto Bello. 1 
Porphyry, filled with green crystals_ 42 
in the Great Basin_ 54 
Porphyritic syenite_ 18 
rocks in a breccia. 68 
Posd, or Ocoya Creek, approach to.. 31 
character of__ 32 
camp at_... 32 
Post Plioceny deposits.. 186 
Posuncula River.33, 37 
Pozo Hondo, or Deep Well... 96 
Prase. 155 
Prasoid rocks.. 155 
Prickly pear.... 73,76, 79 
Prionodon antiquus_ 172 
Production of wine at Los Angeles.. 77 
Puenta rancho. 79 
Puget Sound, coal from_ 287 
Pumice stone, Diablo Valley_ 6 
under the basalt at. Fort Miller_ 22 
Pumice and volcanic ashes... 272 
Punta Loma. 128 
