weeks] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1896. 97 
780 Woolman (Lewis). Report on artesian wells [New Jersey]. 
N. J. Geol. Surv., Ann. Rept. 1895, pp. 63-95, 1896. 
Gives the sections of a number of artesian wells penetrating Cretaceous 
and Tertiary strata. 
781 Wortman (J. L.) Species of Hyracotheriiini and allied perisso- 
dactyls from the Wahsatch and Wind River beds of North 
America. 
Am. Mus. Nat. Hist., Bull., vol. viii, pp. 81-110, pi. ii, figs. 1-18, 1896. 
Describes perissodactyls from the horizons named in Wyoming and 
New Mexico. 
782 Psittacotherinin, a member of a new and primitive suborder 
of the Edentata. 
Am. Mus. Nat. Hist., Bull., vol. viii, pp. 259-262, 18S6. 
Describes an anterior limb of Psittacotlierium multifragum Cope from 
New Mexico and discusses the relationships of this genus. 
783 The North American origin of the edentates. 
Science, new ser., vol. iv, pp. 865-866, 1896. 
Dismisses the origin and affinities of the edentates. 
784 Wright (Fred B.). The origin of the wind gap, Pennsylvania. 
Am. Geol., vol. xviii, pp. 120-123, 1896. 
Describes the topography and drainage of the region. 
785 Wright (G. Frederick). The age of the second terrace on the 
Ohio at Brilliant, near Steubenville [Ohio]. 
Jour, of Geol., vol. iv, pp. 218-219, 1896. 
Discusses the age of certain Glacial deposits. 
78G The age of the Philadelphia brick clay [Pennsylvania], 
Science, new ser., vol. iii, pp. 242-243, 1896. 
Reviews the evidence as to the age of these beds. 
Y. 
787 Youtz (L. A.). Clays of the Indianola brick, tile, and pottery 
works [Iowa]. 
Iowa Acad. Sci., Proc, vol. iii, pp. 40-44, 1896. 
Describes the physical and chemical characters of the clays at this 
locality. 
z. 
788 Zittel (Karl von). Paleontology and the biogenetic law. 
Am. Geol., vol. xviii, pp. 110-150, 1896. 
Discusses the relations of paleontology and biology. 
Bull. 140 7 
