WRITINGS OF C A. WHITE AND 11. A NICHOLSON. 141 



n. , rage. 



Subgenus Leptesthes, Meek ,,,0 



O. [Leptesthes) macro2nslha, n. s., White, 1877 713 



Acella, Halderuan n-ii 



A. haldemani,n.s., White, 1877 rj-ij 



Physa, Draparnaud „, . 



P./eZix-, U.S., White, 1877 ] yj4 



Helix, Liunasus -. . 



H. evarstonensis,ii.ti., White, 1877 ^w 



Neritina, Lamarck „, , 



. 715 



N. naticiform.is, n. s.. White, 1877 7,5 



Subgenus Yelatella, }A eek o, - 



N. (Velatella) J/a^Jtis/a, n. s., White, 1877 " 7i5_7i6 



Goniobasis, hen „^„ 



G. e7idlichi,n.s., White, 1877 _ ,,,- 



Viviparus, himmvck „.„ 



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



V. couesi, u. 8., White, 1877 ] 717-718 



Odontobasis, Meek „.„ 



0.?/ormosa, U.S., White, 1877 _._' ' 718-719 



59. 



White, C. A. Paleoutological Papers No. 7: On the distribution of Molluscau spe- 

 cies ill the Laramie 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 River, Fort Union, Lignitic, and Bitter Creek series, iis the Laramie 

 Group is shown in this paper. 



60. 



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



<Bulletin U. S. Geol. and Geogr. Surv. of the Terr., vol. Iv, art. xxxvi, pp. 865- 



876. Washington, 1878. 

 Same. Washington: Government Printiug Office, 1878. 8vo, pp. 865-876. Two 



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



but without repaging. 



The characteri.stics 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 jialeontology 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- 

 versify of St. Andrews, Scotl.and. < Department of the Interior; United States 

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

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



CONTENTS. 



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

 White, M. D. pp. 7-69. 



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

 the West Indies, and Europe. 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 

 formed, or reverted to, the habit of diving to the bottom, when disturbed, and remaining 

 there like frogs. 



