N. A. INVERTEBRATE PALiEONTOLOGY. 757 



Whitfield, R. P. — ^N^otice of a very large Species of Homalonotus 

 from the Oriskany Saiidstoue Forraation. Bull. Amer. Mus. Nat. Hist., 

 October 10, 1885, vol. i, No. G, pp. 193-195, pi. xxii. October. New 

 York. 



Describes Homalonotus major from the Upper Oriskany? at Cranberry 

 Dam, 5tli Binnewater, Ulster County, New York, collected by Louis 

 Bevier. The " 5th Binnewater " the author supposes to refer to a dam 

 of the Delaware and Hudson Canal Company's privilege on the Binne- 

 water Creek. 



Williams, H. S. — C. A. White : A Review of the Fossils Ostreid:e of 

 North America, and a comparison of the Fossil with the Living- Forms. 

 With apj>endices by Prof. A. Heilprin and Mr. J. A. Ryder. 8. 273- 

 430, Taf. xxsiv-lxxxii. Neu. Jahr. Min. Geol. and Pal., Jahr. 1885, 

 Band ii, p. 292. Stuttgart. (Abstract.) 



Williams, H. S. — Geographical and Physical Conditions as modifying 

 Fossil Faunas. Proc. Amer. Assoc. Adv. Sci., vol. xxxiii, part ii, pj). 

 422, 423. 1885. Salem. 



Abstract. The author says that "many other details might be men- 

 tioned, all pointing to the one conclusion that, in passing over geo- 

 graphical areas of sedimentary deposits of even a few hundred miles 

 in extent, especially when the direction is vertical to the probable coast 

 line of the period, the effects of those changed conditions recorded in 

 the different nature and structure of the deposits, and of other con- 

 ditions (july recorded in the fossils themselves, which were probal>ly 

 differences of temperature and ocean currents, must be borne in mind 

 in classifying the deposits." 



Williams, H. S.— Notice of a new Limuloid Crustacean from the De- 

 vonian. Amer. Journ. Sci., 3d ser., vol. xxx, pp. 45-49, figs. l-3a, }>. 

 48. July, 1885. New Haven. 



The specimen was found in the bluish sandstone (which in places is a 

 fine pebbly conglomerate) at Le Boeuf, called the " third oil sand,'' by Mr. 

 L C. White in the Report Q of the Second Geol. Survey of Pennsylva- 

 nia (p. 239), and regarded by him as the equivalent of the third oil sand 

 of the Venango oil district of that State. In the same stratum and 

 above it are typical Chemung fossils. The author describes it under 

 the name of Prestwichia Eriensis, and gives three figures of it on page 

 48. 



Williams, H. S. — Notice of a new Limuloid Crustacean from the De- 

 vonian Formations of Erie County, Pennsylvania. Nature, vol. xxxii, 

 p. 350. 1885. London and New York. 

 Notice and abstract of Mr, Williams's paper in the American Journal 



of Science. 



