i\n^% 



PROCEEDINGS 



OF THE 



AMERICAN PHILOSOPHICAL SOCIETV 



HELD AT PHILADELPHIA 

 FOR PROMOTING USEFUL KNOWLEDGE 



Vol. XLV, October-DecexMBer. 1906. No. 184, 



CONTENTS, 



The Paragenesis of the Minerals in the Glaucophane-bearing Rocks 



of California, By James Perrin Smith 183 



Stated Meeting, October^ 243 



Stated Meeting, Oct<fber i() 244 



Inheritance ii^ the Female Line of Size of Litter in Poland China 



Sows, By Geo. M, Rommel and E. F. Phillips 245 



The Effect of Sulphuric Acid on the Deposition of Metals when 

 using a Mercury Cathode and Rotating Anode, By Lily G. 

 KoLLOCK and Edgar F. Smith 255 



The Use of a Rotating Anode in the Electrolytic Precipitation of 

 Uranium and Molybdenum, By Edgar T. Wherry and Edgar 

 F. Smith 268 



A Grass-killing Slime Mould. By John W. Harshberger 271 



Stated Meeting, November 2 273 



The Cause of Earthquakes, Mountain Formation and Kindred Phe- 

 nomena connected with the Physics of the Earth. By T. J. 



See 274 



Stated Meeting, November j 6^ - 4i5 



Stated Meeting, December y 4^5 



Stated Meeting, December 21 4^5 



^ PHILADELPHIA 

 THE AMERICAN PHILOSOPHICAL SOCIETY 



104 South Fifth Street 

 iqo6 



