ology and Mineralogy. 71 



:. T/tt Sabre-toothed tiger and other Quaternary Mammals 



Florida. — Dr, Joseph Leidy 1ms named the Quaternary 



tiger, of which remains wore received by him from Mr. Joseph 



Willcox, the Drepanodon or Machairodue Wloridanus. The 



specimens are from Ooaln, Marion Co. It was a somewhat 



smaller animal than the Brazilian species. The same locality has 

 afforded also a premolar of Elephas columbi, and the tooth of a 

 Llama. On Tease Creek, in Florida, Mr. Willcox obtained other 

 .Mammalian remains, among which Dr. Leidy has identified Tapirus 

 xjnvs, a Hippotherium or Hipparion, a Olyptodon t named 

 by Or. Leidy G. septeittrionalis, and remains of a turtle, JSmys 



dypha Le'idy. — FToc. Acad. Nat. Sci. Philad., 1889, p. 29, SG. 



B. Fossils of the Western Taconic limestone in the eastern part 

 of Dutchess Co., X r. — A letter of October 14th, from Pro- 

 lessor Wm, B. Dwight states that he had found, in limestone 

 near the Clove Valley Station, C<tI<->ferous fossils, including the 

 common Fucoids, with Ophiletas, probably 0. complanata ; prov- 

 ing that the Fishkill belt of limestone is Lower Silurian, and con- 



[uently, in connection with his other discoveries, that all the 

 belts of limestone of Dutchess County are fossiliferous. 



9. Cambrian fossils from the limestone of Nahant, Massa- 

 chusetts, northeast of Boston ; by A. F. Fgerste. — The fossils 

 discovered at this locality and reported upon in the Proceedings 

 of the Boston Society of Natural History for 1889, p. 261, are 

 ffyolithes resembling specimens found by Prof. Shaler at North 

 Attleboro, not far from the boundary of Rhode Island. The 

 latter species was referred to //. princeps Billings. Mr. Foerste 

 names it II inaequilateralis, and makes the large Nahant speci- 

 mens the same. The limestone northeast of Mill Cove, in North 

 Weymouth, 12.1 miles from Nahant, is referred to the same hori- 

 zon, which is made that of the Olenellus group. The nearest 

 Paradoxides beds are at Maiden. 



10. The Development of some Silurian Brachiopoda ; by C. 

 E. Beeches and J. M. Clarke. 96 pp. 4tq, with 8 plates. 

 Memoirs of the New York State Museum, Vol. I. Albany, Oct., 

 1889. — This memoir is the result of a careful study of a number 

 of Brachiopods with reference to their successive differences in 

 the progress of development. The specimens were all from a 

 single locality in the Niagara limestone at Waldron, Illinois. 

 The variations in the several parts with the increase in size are 

 described in detail, and many general conclusions are reached. 

 One of these conclusions of much interest is that, in confirmation 

 of observations of Brooke and Morse on living Brachiopods, the 

 shell in its early stages approaches a subcircular outline, so that 

 there is uniformity in the embryology of the ancient Silurian 

 types and that of the modern species. The memoir is an impor- 

 tant study in evolution. 



11. Devonian Plants from Ohio ; by Dr. J. S. Newberry. — 

 In the Journal of the Cincinnati Society of Natural History for 

 October last (page 48), Dr. Newberry describes and figures of 



