Publications of Scientific Societies. 101 



\ Natural system of volcanic rocks. {Continued.) 

 Order Second : Trachyte — 

 Family 1. Sanidin trachyte. 



2. Oligoclase trachyte. 

 Order Third : Propylite — 



Family 1. Quartzose propylite. 



2. Hornblendic propylite. 



3. Augitic propylite. 

 Order Fourth : Andesite — 



Family 1. Hornblendic andesite. 



2. Augitic andesite. 



Order Fifth : Basalt — 



Family 1. Dolerite. 



2. Basalt. 



8. Leucitophjre. 



On certain fossils from San Luis Obispo County ; by Dr. Anti- 

 sell. Proc. Cal. Acad. Sci., vol. 1, 1854-57, pp. 34-35. 



Description of Ammonites Batesi; by Dr. J. B. Trask. Proc. 

 Cal. Acad. Sci., vol. 1, 1854-57, p. 39. 



Descriptions of fossil shells; by Dr. J. B. Trask. Proc. Cal. 

 Acad. Sci., vol. 1, 1854-57, pp. 40-42. 



Chemnitzia papulosa, n.sp. ; Tornatella elUptica, n.sp. ; Murex 

 fragilis, n.sp. ; Fusus Barharensis, n.sp. ; F. rohustus, n.sp. ; F. 

 rugosus, n.sp. From Santa Barbara and San Pedro. 



On the cause of tides, earthquakes, rising of continents, etc. ; 

 by Dr. C. F. Winslow. Proc. Cal. Acad. Sci., vol. 1, 

 1854-57, pp. 48-51. 



Remarks on certain geological specimens; by Horace Davis. 

 Proc. Cal. Acad. Sci., vol. 1, 1854-57, p. 62. 



Report on mineral waters from Red Bluff ; b}^ Dr. Lanszweert. 

 Proc. Cal. Acad. Sci., vol. 1, 1854-57, pp. 72-74. 



On earthquakes in California from 1812-1857; by Dr. J. B. 

 Trask. Proc. Cal. Acad. Sci., vol. 1, 1854-57, pp. 85, 102, 

 109, and 121. 



Republished Am. Jour. Sci, 2d ser., vol. 22, 1856, pp. 110-116. 



Description of new species of Ammonite and Baculite ; by Dr. 

 J. B. Trask. Proc. Cal. Acad. Sci., vol. 1, 1854-57, p. 92. 



Ammonite Chicoensis, n.sp. ; Baculite Chicoensis, n.sp. Plate II, 

 figs. 1-2. 



