No. 4. 



CATALOGUE OF THE MINERALS AND FOSSILS COLLECTED ON THE 



SUI1VEY. 



No 



1 



2 



3 



4 



5 



fl 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



2G 



27 



28 



29 



30 



31 



32 



33 



34 



35 



Name. 



Red jasper. 

 Sandstono . 



...do 



-do. 

 .do. 



Volcanic tufa 



Volcanic conglonrerate. 

 do do 



* Locality. 



Benicia, California. 

 do do.. 



San Francisco, California.. 

 Santa Barbara, California. 

 San Pablo bay, California. 

 do.. do 



.do. 

 .do. 



.do. 



.do. 



do do 



Scoria in conglomerate. 



Blue limestone 



Calcareous tufa 



Tufaceous trap 



...do 



.do. 



.do. 



.do. 



.do. 



.do. 



....do... 



Near Benicia 



Hills west of Suisun bay. 

 do do 



Granite 



Cellular trap . 

 ....do 



.do. 



Alumina — silicious marl, pure white 



do do brown 



do do pure white 



Green sandstone 



Trachyte, containing crystals of hornblende and glassy felspar 



do decomposing into felspathic sand, reflecting the sun like snow. 



Sandstone, cream colored and friable, forming bluffs capped with trap 



Alumina — silicious marl, pure white 



Scoria in sandstone (25) 



?umice, coarse 



Epidote, with crystals of hornblende. 



Gray syenite 



Gray \ loiphyry ... 



Greenstone 



Massive quartz, with epidote 



Black o! isidian, in balls 



Pumice, from Pumice plain 



Near Sonoma, California- 

 Near Fort Reading 



Tit river, lower canon 



Pit river, upper canon 



Pit river, lower cafion .. 

 do do 



Pit river, above upper canon 



20 miles above upper canon, Pit river. 

 Lass«n's butte, California. 



Shores of Rhett lake 



Plain about Lower Klamath lake. 

 Natural Bridge, Lost river, 0. T. 



Lassen's butte, California 



Upper Pit river, California 



Upper Pit river. 



... do 



.do. 



.do. 

 .do. 



North of Upper Klamath lake. 



