1020 



19) Proceedings of the Academy of Natural Sciences of 

 Philadelphia. 8°. [Jb. 1879. 76.] 



1878. Part I— III. pg. 1—475. 

 C. A. White : Descriptions of new species of invertebrate fossils from 

 the Carboniferous and upper silurian rocks of Illinois and Indiana. 29. 



— G. Leidy: On citrine or yellow quartz. 40. — E. Goldsmith: On the Al- 

 kali of the plains in Bridger Valley, Wyoming Territory. 42. — G. Koenig: 

 On the association of grossularite, zoisite, heulandite and leidyite. a new 

 mineral. 81. — G. Koenig: Black baryte from Derbyshire. 99. — E. Gold- 

 smith: Stibianite, a new mineral. 154. — E. Goldsmith: Staffelite, from 

 Pike's Peak, Col. 156. — J. Willcox: Note on Corundum. 159. — J. Will- 

 cox: Corundum in North Carolina. 223. — Chas. Wachsmuth and Frank 

 Springer: Transition forms in Crinoids and description of five new species. 

 224. — Wm. G. Maztck and A. W. Vogdes: Description of a new fossil 

 from the Cretaceous beds of Charleston, S. C. 272. — Th. D. Rand: On 

 a belt of Serpentine and steatite in Radnor Township, Delaware Co. Pa. 

 402. — G. Koenig: Mountain Soap of California. 405. — G. Koenig: Mi- 

 neralogical notes: Randite. 408. 



20) The Journal of the Cincinnati society of natural history. 

 Vol. I. No. 4. January 1878. 



A. G. Wetherby: Description of a new family and genus of Lower 

 Silurian Crustacea. 



21) Proceedings of the California Academy of Sciences. 

 Vol. VI. 1875. 8°. San Francisco. 1876. 



G. Davidson: On the probable cause of the low temperature of the 

 depths of the Ocean. 29. — J. Le Conte: On some of the ancient glaciers 

 of the Sierras. 38. — J. E. Clayton: The glacial period, its origin and 

 development. 123. — C. F. Winslow: On fossil mammalian remains in 

 San Francisco. 141. — J. Blake: On Roscoelite, or Vanadium mica. 150. 



22) Comptes rendus hebdoma dair es des seances de l'Acade- 

 mie des sciences. Paris. 4°. [Jb. 1879. 775.] 



T. LXXXVIII. No. 21. 26 Mai 1879. 

 E. Frfmy : Recherches chimiques sur la formation de la houille. 1048. 



— J. D. Tholozan: Sur les tremblements de terre qui ont eu lieu en 

 Orient du VII e au XVII e siecle. 1063. — E. Marchand: Sur la diffusion 

 de la lithine et sa presence dans l'eau de la mer. 1084. 



T. LXXXVIII. No. 22. 2 Juin 1879. 

 J. Lawrence Smith: Figures de Widmanstaetten sur le fer artificiel. 

 1124. — J. Lawrence Smith: Observation relative ä la communication de 

 MM. Urbain et Renoül sur une combinaison de 1'alumine avec l'acide 

 carbonique. 1135. 



T. LXXXVIII. No. 23. 9 Juin 1879. 

 Gourdon: Blocs erratiques de la vallee du Lys (Haute-Garonne). 1217. 



