.N'OKTH AMERICAN J^AL.EONTOLOGY. 273 



Shaler, IST. S. — Continued. 



the U. S. Geol. Survey. (Amer. Jour. Sci., vol. xxxii, pp. 35-60, 

 figs. 1-13, July, 1886. New Haven.) 



Fossiliferoiis Horizons of the Cobscook Series. The author gives several lists 

 of species, and considers that he has horizons corresponding to the Lower 

 Helderberg, Clinton, and Niagara groups of New York, and the dark Dev- 

 onian Ohio shale of the Kentucky Geological Survey. 



Shalee, N. S. Preliminary Report on the geology of the Cobscook Bay 

 district, Maine. (Nature, vol. xxxiT, p. 330, 1886. London and New 

 York.) 



Notice of. See American Journal of Science, .July. 



Smith, Aubrey n. The Railway Cutting at Gray's Ferry Road. (Proc. 

 Acad. Nat. Sci., vol. — , ])p. 253, 254, September, 1886. Philadel- 

 phia.) 



Describes a bed of bine clay on the Schuylkill River, containing numerous gen- 

 era and species of diatoms and several species of recent woods, and exhib- 

 ited a specimen of wood, probJibly of a white ctdar, Ctq)ressHS ihyoides. 

 This tree until A'ery recently was common along the Schuylkill and Dela- 

 ware, and isolated specimens may still exist there. The wood now shown, 

 is in no degree mineralized, and but slightly decomposed. This blue clay 

 occurs at a depth of 25 feet through yellow clays and river gravels. 



Smith, Edgar. (iSVeLamplugh, G. W.) 



Spencer, J. W. Niagara Fossils. (Trans. St. Louis Acad. Sci., vol. 

 IV, No. 4, 1878-'86, pp. 555-624, pis. i-ix, 1886. St. Louis.) 



A reprint of the article published in tlie Bull. Mus. Uuiv., State of Missouri, pp. 

 1-61, St. Louis, 1884. 



Springer, Frank. [See Carpenter, P. Herbert.) 



Steinmann. Charles A. White : On the Mesozoic and Ceno/oio Pa- 

 leontology of California. Bull. U. S. Geol. Survey, No. 15, 1S85, 33 S. 

 (Neu. Jahrb. Min., Geol. u. Pal., 18S6,Bd. ii, pp. 110-112, Stuttgart.) 

 Abstract. 



Steinmann. Charles A. White : On New Cretaceous Fossils from Cali- 

 fornia. Bull. U. S. Geol. Survey, No. 22, vol. iii, 25 S., 5 tafeln. 

 W^ishington, 1885. (Neu. Jahrb. Min., Geol. u.Pal., Bd. ii, pp. 112- 

 113, 1886. Stuttgart.) 

 Abstract. 



Steinmann. H. A. Nicholson and A. H. Ford : On the Genus Fistu- 

 lipora, McCoy, with descriptions of several species. Ann. & Mag. 

 Nat. Hist., ser. 5, vol. xvi, ]>p. 406-517, t. xv-xviii, and 6 Holz- 

 schnitte, 1885. (Neu. Jahrb. Min., Geol. u. Pal., Bd. ii, pp. 133, 134, 

 1886. Stuttgart.) 



Abstract. 



Steinmann. H. A. Nicholson and R. Etheridge, jun. : On the Synon- 

 omy, Structure, and Geological Distribution of Solenopora conipacta 

 Billings sp. Geol. Mag. Dec. ill., vol. ii., No. 12, pp. i-xiii and 

 H. Mis. 600 IS 



