348 
APPENDIX. 
No. 
164 
165 
166 
167 
168 
169 
170 
171 
172 
173 
174 
175 
176 
177 
178 
179 
180 
181 
182 
183 
184 
185 
186 
187 
188 
189 
190 
191 
192 
193 
194 
195 
(462) 
(463) 
200 
201 
202 
203 
204 
205 
206 
207 
III. STRATIFIED ROCKS—Continued. 
Name. 
Locality. 
Colorado desert__.... 
.do.... . 
_..do.. 
Sandstone concretion, long flattened cylinder, showing line's of 
.do................... . 
Sandstone concretion, loDg and elliptical, containing small concre- 
Colorado desert.....________ 
Hollow concretion of peroxide of iron, showing lines of stratification 
Pebbles of agate, jasper, and carnelian____...._ 
Chalcedony ______... 
Yort Yuma_____ 
Black polished pebble_,_____1__ 
Desert north of Pilot Knob ____... 
Two polished pebbles_......_ 
Selenite__......_____ 
Desert, Carrizo creek__ 
From the Sand-Hills, between Cook’s Well 
and the Alamo, Colorado desert__ 
Deep Well, Colorado desert_..._.... 
Sand, from the drift at the deep well_____ 
Sandstone, pink color___...... 
Mokelumne Hill_,.___... 
White sandstone_ . 
Gray sandstone_ ___..._.... 
Bodega Bay_____ 
Argillaceous sandstone, green and soft; fossiliferous__.... 
Fine clay, from the auriferous drift.____...__.... ... 
Volcano Ridge, California................. 
Georgetown, California_...._...._ 
Clay containing volcanic ash and the impression of a leaf, auriferous 
drift_______ . 
Red and drab clay, auriferous drift___..._.... 
Cement Hill, Georgetown, California._ 
Sandstone, containing casts of tertiary fossils 
Ocoya Creek, California_ 
Rock, containing calcareous polythalamia_ 
Monterey_ _ri.lSSBS 
Rock perforated by Petricola cylindracea_ 
Sandstone___..._ 
Bay of Panama____---------- 
_do___ 
Bay of Panama, near the market - -- -- - 
Barbacoas, Isthmus.......... — .. 
IV. MINERALS AND ORES. 
Sulpburet of antimony_ ..... _....... 
Near San Amedio Pass.__......« — . — — . — —. 
Sulphuret of antimony with quartz_...... . 
_ do_ __do ______...—s 
Vein-stone of the antimony ore containing snlphnret of iron 
Fragment of a small vein adjoining the vein of antimony -___- 
Hydrous peroxide of iron_------ 
Magnetic iron ore __ 
