PROCEEDINGS 49 



Proc. 

 No. 



220. On Semper's method of making dry preparations, [Abstract, with remarks 



by J. A. Ryder.] P. 224, Dec. 8, 1881; p. 225, Jan. 4, 1882. 



221. Notes on a collection of fishes, made by Lieut. Henry E. Nichols, U.S.N., on 



the west coast of Mexico, with descriptions of new species. By David S. 

 Jordan and Charles H. Gilbert. Pp. 225-233. Jan. 4, 1882. 



222. Report on the contents of two bottles of water from the Gulf of Mexico, for- 



warded by the Smithsonian Institution. By W. G. Farlow. P. 234. Jan, 

 4, 1882. 



223. Remains of the walrus (?) in Maine. By C. H. Boyd. Pp. 234-235, Jan. 4, 1882. 



224. Directions for collecting and preserving fish. By Tarleton H, Bean. Pp. 235- 



238. Jan. 4, 1882. 



225. A preliminary catalogue of the fishes of Alaskan and adjacent waters. By 



Tarleton H. Bean. Pp. 239-240, Jan. 4, 1882; pp. 241-256, Jan. 9, 1882; pp. 

 257-272, Jan. 4, 1882. 



226. Methods of making and preserving plaster casts. By Anthony Pirz. P. 272, 



Jan. 4, 1882; p. 273, Feb. 1, 1882. 



227. List of fishes collected by Lieut. Henry E. Nichols, U.S.N., in the Gulf of 



California and on the west coast of Lower California, with descriptions of 

 four new species. By David S. Jordan and Charles H. Gilbert. Pp. 273-279, 

 Feb, 1, 1882. 



228. On the genera of chitons. By W. H. Dall. Pp. 279-288, Feb. 1, 1882; pp. 289- 



291, Mar. 13, 1882. 



229. Notes on certain aboriginal shell mounds on the coast of New Brunswick and 



of New England. By S. F. Baird. Pp. 292-297. Mar. 13, 1882. 



230. List of marine invertebrates, mainly from the New England coast, distributed 



by the United States National Museum. Series II. Prepared by Richard 

 Rathbun. Pp. 298-303, Mar. 13, 1882, 



231. List of marine invertebrates from the New England coast, distributed by the 



United States National Museum. Series III. — Educational Series. Prepared 

 by Richard Rathbun. P. 304, Mar. 13, 1882; pp. 305-307, Mar. 15, 1882. 



232. Catalogue of a collection of Japanese woods presented to the United States 



National Museum by the University of Tokio, Japan. [Prepared by Lester 

 F. Ward.] Pp. 308-311. Mar. 15, 1882. 



233. A partial bibliography of the fishes of the Pacific coast of the United States 



and of Alaska, for the year 1880. By Tarleton H. Bean. Pp. 312-317. Mar. 

 15, 1882. 



234. Catalogue of Old World birds in the United States National Museum, By 



Robert Ridgway. Pp. 317-320, Mar. 15, 1882; pp. 321-333, Mar. 16, 1882. 



235. Notes on some Costa Rican birds. By Robert Ridgway. Pp. 333-336, Mar. 16, 



1882; p. 337, Apr. 6, 1882. 



236. Description of a new fly-catcher and a supposed new petrel from the Sand- 



wich Islands. By Robert Ridgway. Pp. 337-338. Apr. 6, 1882. 



237. Descriptions of thirty-three new species of fishes from Mazatlan, Mexico. By 



David S. Jordan and Charles H. Gilbert. Pp. 338-365. Apr. 6, 1882. 



238. Description of a new owl from Porto Rico, By Robert Ridgway. Pp. 366-368, 



Apr. 6, 1882; pp. 369-371, Apr. 13, 1882. 



239. Description of two new races of Myadestes obscurus Lafr, By Leonhard Stejne- 



ger. Pp. 371-374. Apr. 13, 1882. 



240. Descriptions of two new thrushes from the United States. By Robert Ridgway. 



Pp. 374-379. Apr. 13, 1882. 



241. Benthodesmus, a new genus of deep-sea fishes, allied to Lepldopus. By G. 



Brown Goode and Tarleton H. Bean. Pp. 379-383. Apr. 13, 1882. 



242. Description of a new species of Pomadasys from Mazatlan, with a key to the 



species known to inhabit the Pacific coasts of tropical America. By David 

 S. Jordan and Charles H. Gilbert. Pp. 383-384, Apr. 13, 1882; pp. 385-388, 



Apr. 25, 1882. 



243. The rapid preparation of large myological specimens. By Felix Plateau. 



Pp. 388-391. Apr. 25, 1882. 



