722 RECENT P UBLICA TIONS 



— Walther, Julius. Synthese von organischen Sauren, Kohlenhydraten 

 und eiweissartigen Stoffen aud Kohlensaure. [Separat-Abdruck aus 

 der Zeitschrift fiir gesammte Kohlensaure-Industrie; Berlin, 1903.] 



— Watson, Thomas L. A Preliminary Report on a Part of the Granites and 

 Gneisses of Georgia. [Bull. 'No. 9-A, Geol. Surv. of Ga. ; Atlanta, 

 Ga.] 



— Weller, Stuart. The Paleozoic Faunas. [Geol. Surv. of New Jersey, 

 Rept. on Paleontology, Vol. Ill; Trenton, 1903.] 



— White, I. C. Levels above Tide, True Meridians, etc.; Report on Coal. 



[W. Va. Geol. Surv., Vol. II ; Morgantown, W. Va., 1903.] 

 — Whitfield, R. P. Notice of Six New Species of Unios from the Laramie 



Group. [Extract from ibid.. Vol. XIX, Art. XV., pp. 483-87, New 



York, August, 1903.] 

 — Williams, Henry S. The Correlation of Geological Faunas : A Contri- 

 bution to Devonian Paleontology. [U. S. Geol. Surv., Bull. No. 210; 



Washington, 1903.] 

 — WiLLiSTON, S. W. North American Pleiosaurs. [Pub. No. 73, Vol, II, 



No. I, Geol. Ser., Field Columbian Museum; Chicago, April, 1903.] 

 On the Osteology of Nyctosaurus (Nyctodactylus); with Notes on 



American Pterosaurs. [Pub. No. 78, Geol. Ser., Field Columbian 



Museum; Chicago, June, 1903.] 

 — Wolff, Wilhelm. Zur Kritik der interglacialen Hypothese. [Abdruck 



aus der Naturwissenschaftlichen Wochenschrift, 1903.] 

 — Woodworth, J. B. The Northumberland Volcanic Plug. [Reprinted 



from the 2d Rept. of the New York State Geologist; Albany, 1903. 



