10 Aves. 
XV. Aves. 
[1921] 
222. — Gabrielson, I. N. A question 
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223. — Gabrielson, I. N. The birds of 
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Gabrielson, I. N. vide Kalmbach. 
224. — Galasse, A. Compte rendu de 
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Gallagher, B. A. vide Ward. 
225. — Garling, M. Cuculus canorus 
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226. — Gengler, J. Ein Beitrag zur 
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227. — Gengler, J. Faunistische 
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228. — Gengler, J. Der Formenkreis 
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102 1 map 1 pi. 
229. — Gengler, J. Die Avifauna des 
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230. — Gengler, J. Die europaischen 
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231. — Gengler, J. Der Gefieder- 
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232. — Ghigi, A. Le Perdix de la 
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233. — Giersberg, H. Eihullenbild- 
ung der Vogel, sowie Entstehung der 
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234. — Gignoux, C. Speed of flight 
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Berkeley Cal. 23 1921 pp. 33-34. 
235. — Gignoux, C. The storage of 
almonds by the California Wood- 
pecker. Condor Berkeley Cal. 23 1921 
pp. 118-121 1 photo. 
236. — Gill, E. H. Nidification of 
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237. — Gladstone, H. S. A sixteenth 
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Brit. Bds. London 15 1921 pp. 67-69 
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238. — Gladstone, H. S. The last of 
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177 2 figs. 
239. — Gladstone, H. S. The value of 
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240. — Glegg, W. E. The nesting of 
the Little and Common Tern, and other 
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241. — Goormaghtigh, N. Organo- 
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165 4 pis. 13 text-figs. 
242. — Gordon, A. Further notes on 
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243. — Gornitz, K. New forms of 
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244. — Gotz, W. Strittige Punkte 
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245. — Graunes, J. Graatrost [ Turdus 
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246. — Greschik, E. Necrolog. Max 
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247. — Grinnell, J. A striking case of 
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248. — Grinnell, J. The criterion for 
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