Writings of c a. white and n. a. Nicholson. 141 



Page. 



Subgenus Leptesthes, Meek 713 



O. [Leptesthes) macropistha,ii.s., White, 1877 713 



Acella, Haldeman 714 



A. haldemani, n. a., White, IS77 714 



Physa, Draparnaud 714 



P./eZ«-, U.S., White, 1877 714 



Helix, Linnajus 714 



H. evat^stonenais, u. s., White, 1877 714 



Neritina, Lamarcli - 715 



N. naticiformis, u. s., White, 1877 715 



Subgenus Telatclla, M eek 715 



N. (Velatella) ba^iis/d, n. s., White, 1877 715-716 



Ooniobasis, Lea 716 



O.emdiicfti.n. 8., White, 1877 716 



Vivipariis, Lamarck 716 



V. prudentia, n. s.. White. 1877 716-717 



F. cowesi, n. s., Wliite, 1877 717-718 



Odontobasis, Meek 718 



0.?/orjnosa, U.S., White, 1877 718-719 



59. 



White, C. A. Paleontological Papers No. 7: On the distributiou of Molluscan spe- 

 cies in the Lavaiuie Group. < Bulletin U. S. Geol. and Geog. Surv. of the Terr, 

 vol. iv, art. xxix, pp. 721-724. Washington, 1878. 



The unity of the Judith Kiver, Fort Union, Lignitic, and Bitter Creek series, as the Laramie 

 Group is shown iu this paper. 



60. 



White, C. A. Paleontological papers No. 8. Remarks upon the Laramie group. 



<^Bulletin U. S. Geol. and Geogr. Snrv. of the Terr., vol. iv, art. xxxvi, pp. 865- 



876. Washington, 1878. 

 Same. Washington: Governuieut Piintiug Office, 1878. 8yo, pp. 865-876. Two 



hundred separates printed (author's edition), with title-page and paper covers, 



but without repaging. 



The characteristics of the group and its probable geological age are discussed. 



61. 



White, C. A., and Nicholson, H. A. Bibliography of North American Invertebrate 

 Paleontology ; being a report upon the publications that have hitherto been made 

 upon the invertebrate paleontology of North America, including the West Indies 

 and Greenland. By C. A. White, M. D., Paleontologist of the United States Geo- 

 logical Survey, and H. Alleyne Nicholson, M. D., D. Sc, Professor at the Uni- 

 versity of St. Andrews, Scotland. < Department of the Interior; United States 

 Geological Survey of the Territories. Miscellaneous ijublications No. 10. Wash- 

 ington: Government Printiug Office, 1878. 8vo, 132 pp. 



CONTENTS. 



Part I. Embracing titles and abstracts of publications made in the United States. By C. A. 

 White, M. D. pp. 7-09. 



Part n. Embracing titles and abstracts of publications made in British North America, in 

 the West Indies, and Euiope. By H. Alleyne Nicholson, M. D., D. Sc, pp. 71-132. 



62. 



White, C. A. Change in the habits of Toads. <Nature. 4to, vol. xvii, p. 242. 

 London and New York, 1878. 



Observations made in Colorado along irrigating ditches show that the toads there have 

 fiirnied, or reverted to, the habit of diving to the bottom, when disturbcxl, and remaining 

 there like frogs. 



