322 RECORD OF SCIENCE FOR 1887 AND 1888. 



209. Osborne, IT. F. Noto upon the gennti J throdon. Amer. Nat., vol. xxi,p. 1020. 



1887. Philadelphia. 



210. On the strncture and classification of Me.sozoic mammalia. Jonru. Acad. 



Nat. Sci. Philad., vol. ix. No. 2, pp. 186-2(i5. July, 1888. Philadelphia. 



211. A review of the Lydekkcrs' arrangement of the Mesozoic mammalia. 



(Cat. Foss. Manim. Brit. Mns., pt. v, 1887.) Amer. Nat., vol. xxii, pp. 232- 

 23fi. 1888. Philadelphia. 



212. Chalicotherium and Macrotherium. Amer. Nat., vol. xxii, pp. 729,730. 



1888. Philadelphia. 



213. The nomenclature of the mammalian molar cusps. Amer. Nat., aoI. xxii, 



pp. 926-928. 1888. Philadelphia. 



214. The evolution of the mammalian molar teeth to and from the trituber- 



cular type. Amer. Nat., vol. xxii, pp. 1067-1079. October, 1888. Philadel- 

 phia. 



215. Additional observations upon the structure and classification of the 



Mesozoic mammalia. Proc. Acad. Nat. Sci. Philad., pp. 292-301. October, 

 1888, Philadelphia. 



216. and Scott, W. B. {See Scott, W. B., and Osborne, H. F.) 



217. Owen, Richard. American evidences of Eocene mammals of the "Plastic 



Clay" Period. Brit. Assoc. A. S., 1886, vol. LV, p. 1033. London. 



218rt. Packard, A. S. On the Syncarida, a hitherto nndescribed synthetic group of 

 Malacostracous Crustacea. Mem. Nat. Acad. Sci., vol. iii, ]»p. 123-128, pis. 

 X, II. 1887. Washington. 



2186. On the Gampsonychida?, an nndescribed family of Schizopod Crustacea. 



Mem. Nat. Acad. Sci., vol. in, pp. 129-133, pi. iii. (Read 1885.) 1887. Wash- 

 ington. 



2l8c. On the Anthracaridfe, a family of Carboniferous Macrnrous Decapod 



Crustacea. Mem. Nat. Acad. Sci., vol. in, pp. 13,5-139, pi. iv. (Read 1885.) 

 1887. Washington. 



2i8d. On the Carboniferous Xiphosnrons Fauna of North America. Mem. Nat. 



Acad. Sci., vol. in, pp. 143-1,57, pis. v, vi, vn. (Read 1885.) 1887. Wash- 

 ington. 



218e. On the class Podostomata, a group embracing the Merostomata and Tri- 



lobites. Annals and Mag. Nat. Hist., 5th series, vol. xix, pp. 164, 165. 1887. 

 London. 



219. . Discovery of the thoracic feet in a Carboniferous Phyllocaridan. Proc. 



Amer. Phil. Soc.,vol. xxiii, p. 380. 1887. Philadelphia. 



220 Fossil Arthropods. Amer. Nat., vol. xxi, p. 1100. 1887. Philadelphia. 



221. Pavlow, Marie. lOtnde sur I'histoire pal6ontologiquedes Ongnl^^sen Amcriqne 



et en Europe. Bull. Soc. Imp. Nat. Moscou, No. 2, p. 443. 1887. Russia. 



222. Prosser, C. S. The Upper Hamilton of Chenango and Otsego Counties, New 



York. (Abstract.) Proc. A. A. A. S., vol. xxxvi, p. 210. 1887. Salem, 

 Massachusetts. 



223. PuMPELLY, Raphael. On the fossils of Littleton, New Hampshire. Amer. 



Journ. Sci., vol. xxxvi, pp. 79, 80. January, 1888. New Haven. 



224. RiNGUEBKRG, E. N. S. A Trilohite track, illustrating one mode of progression 



of the Trilobites. Proc. A. A. A. S., vol. xxxv, p. 228. 1887. Salem, Mass, 



225. Some new species of fossils from the Ni.agara shales of western New York. 



Proc. Acad. Nat. Sci. Philad., pt. n, pp. 131-137, pi. vni. 1888. Philadelphia. 



226. On Niagara shales of western New York; a study of the origin of their 



subdivisions and their faunre. Amer. Geol., a-o1. i, pp. 263-271. May, 1888, 

 Minneapolis. 



227. RoMiNGER, C. Descriptions of a new form of Bryozoa. 



Proc. Acad. Nat. Sci. Philad., pt. i, p. 11. 1887. Philadelphia. 



228. Description of Primordial fossils from Mt. Stephens, Northwest Territory 



of Canada. Proc. Acad, Nat. Sci., pp. 12-19. « 1887. Philadelphia, 



