22 DONS. — 20 JUIN AU 7 NOVEMBRE 1887 



Bisrnutosphœrite from Willimautic and Portland,Conn. ; by H. L. Wells, p. 271. 

 Note on some remarkable Crystals of Pyroxene from Orange Gounty, N. Y; by 

 G. H. Williams, p. 275. 

 Analyses of some Natural Borates and Borosilicates; by J. E. ^\'hilfield, p. 2Sl. 

 The Texas section of the american Gretaceous; by Pv,. T. Hill, p. 2.S7. 

 Notice of New Fossil Mamaials; by 0. C. Marsh, p. 323, 



New York, The twenty-sixth,lwenty-seventh andtwenty-eighth an- 

 nual Reports of the Trustées of the Gooper Union for the Advance- 

 ment of Science and Art, May 1887. 



Bulletin of the American Muséum of Natural History (Central Park, 

 New York). Vol. Il, N° 1, May 1887. 



Note on Squalodont Remains from Charleston S. C. by J. A. Allen, p. 35, pi. V 

 and VI. 



Philadelphia. Transactions of the Wagner Free Institute of Science 



of — . 



Explorations on the west coast of Florida with spécial Référence to the Geology 

 and Zoology of the Floridian Peninsula, by Angelo Heilprin. — 18 pi. de fossiles 

 miocènes et pliocènes. 



Proceedings of the Academy of Natural Sciences of — . Part. I. Ja- 

 nuary-April 1887. 



Description of a new form of Bryozoa, by Dr. C. Rominger, p. H. 



Description of primordial fossil from Mount Stephens, N. W. Territory of Ca- 

 nada, p. 12, by Dr. C. Rominger. 



Notes on the Geology of China, by Adèle M. Fielde, p. 30. 



On new generic forms of Gretaceous Mollusca and their relation to other forms, 

 by Charles A. White, p. 32. 



On a peculiar form of Molybdenite, by George A. Ph. D. Kœnig, p. 38. 



On the Gretaceous formations of Texas and their relations to those of other por- 

 tions of North America, by Charles A. White, p. 39. 



On Zinc-Manganese Asbestos, by George A. Ph. D. Kœnig, p. 47. 



On Invertebrates from the Eocene of Mississipi and Alabama, by Otto Ph. D. 

 Meyer, p. 51. 



The Summil Plates in Blastoids Crinoids and Gystids and their Morphological 

 Relations, by Wachsmuth Charles and Frank Springer, p. 82. 



Proceedings of the american philosophical Society held at — 



for promoting useful knowledge. Vol, XXIV, n^ 125. January to June 

 1887. 



Contributions to Mineralogy, by. F. A. Genth, p. 23. 



A geological Reconnaissance of Bland, Giles, Wythe and portions of Pulaski 

 and Montgomery counties of Virginia, by John J. Stevenson (a map and two 

 plates), p. 61. 



The triassic Mammals Dromatherium and Microconodon, by Henry F. Osborn 

 (a plate), p. 109. 



Notes on the surface Geology of South West Virginia, by John J. Stevenson, 

 p. 172. 



— Philadelphia. — Report of Geological Survey of Wisconsin lowa, 



I 



