WOEKS OF EEFEEBNCE 403 



203. Howes.— See No. 9 this list. 



204. Huxley. — " The Crayfish," in "International Scientific 



Series," New York, 1880. 



205. Huxley.— See No. 21 this list. 



206. Huxley and Martin. — See No. 10 this list. 



207. Hyatt.— See No. 191 this list. 



208. Lang.— See No. 22 this list. 



209. Marshall and Hurst.— See No." 12 this list. 

 209a. Morgan. — See No. 22a this list. 



210. Packard.— See No. 24 this list. 



211. Parker.— See No. 44 this list. 



212. "Standard Natural History." — See No. 26 this list, vol. ii. 



213. Woodward. — Article "Crustacea," in "Encyclopaedia Bri- 



tannica," Ninth edition. 



LOOtrST 



214. Brooks. — See No. 48 this list. 



215. Bumpus. — See No. 49 this list. 



216. Claus and Sedgwick. — See No. 18 this list, vol. i. 



217. Conastock. — " Introduction to Entomology," Ithaca, 1888. 



218. Gegenbaur. — See No. 19 this list. 



219. Grifiiths.— See No. 53 this list. 



220. Hnxley. — See No. 21 this list. 



221. Hyatt and Arms. — "Insecta," in "Guides for Science 



Teaching," No. VIIL, Boston, 1890. 



222. Lang. — See No. 22 this list. 



223. Miall and Denny. — " The Cockroach," London, 1886. 



224. Packard. — " Guide to the Study of Insects," New York, 



1889. 

 226. Packard. — See No. 24 this list. 



226. "Reports U. S. Entomological Commission for 1877," 



Washington, 1878. 



227. "Reports U. S. Entomological Commission for 1878 and 



1879," Washington, 1883. 



228. " Reports U. S. Entomological Commission," Washington, 



1883. 



229. " Standard Natural History." — See No. 26 this list, vol. ii. 



