[1921] 
XV. Aves. 
Aves. 11 
249. — Grinnell, J. Concerning the 
status of the supposed two races of 
the Long- billed Curlew. Condor 
Berkeley Cal. 23 1921 pp. 21-27. 
250. — Grinnell, J. The principle of 
rapid peering in birds. Univ. Cal. 
Chronicle Berkeley 1921 pp. 392-396. 
251. — Grinnell, J. and Storer, T. I. 
Some birds of Yosemite National Park : 
from Hall’s Handbook of the Yose- 
mite National Park pp. 133-152 
4 photos. New York (Putnam) 1921. 
252. — Griscom, L. The Mocking 
bird of St. Thomas, W.I. Auk Lan- 
caster Pa. 38 1921 p. 461. 
253. — Griscom, L. Some notes on 
the winter avifauna of the Camargue. 
Ibis London 1921 pp. 695-609. 
Griscom, L. vide Miller. 
Griscom, L. vide Dwight. 
254. — Groebbels, F. Die Morphologie 
des Vogelgehirns in ihren Beziehungen 
zur Biologie. Arch. ges. Physiol. 
Berlin 187 1921 pp. 299-325 1 text-fig. 
1 plate. 
255. — Groebbels, F. Experimentelle 
Untersuchungen fiber den Gasstoff- 
wechsel der Vogel. Zs. Biol. Mfinchen 
70 1920 pp. 477-504. 
256. — Gross, A. 0. The Dickcissel 
( Spiza americana) of the Illinois 
prairies. Auk Lancaster Pa. 38 1921 
pp. 1-26 163-184 13 pis. 
257. — Grote, H. Ueber die zoolo- 
gischen (hauptsachlich ornitholo- 
gischen) Gebiete der ausserhalfc der 
Tropen gelegenen Teile unseres Konti- 
nents. Von Nikolai Sewerzow. Ueber- 
setzt und eigeleitet von H. G. pp. 1-32 
portr. Mfinchen (Dultz) 1921 8vo. 
258. — Grote, H. Aus der ornitho- 
logischen Literatur Russlands. Berichte 
und tjbersetzungen. (1) Dr. B. 
Shitkow’s orntithologische Beobach- 
tungen auf der Samojeden-Halbinsel. 
(Ja-mal) pp. 1-16. (2) Die Vogel 
Nordwestrusslands : der Gouverne- 
ments Pskow, Nowgorod und St. 
Petersburg (Arbeiten von Dr. V. 
Bianchi und N. Sarudny pp. 17-32 
(3) Zur Vogelfauna des westsibirischen 
Gouvernements Tobolsk, pp. 33-44 
Zur Avifauna des Ustj-Ssyssolsk- 
Kreises in Gouvernment Wologda 
von W. Andrejew und V. Bianchi 
pp. 46-56. Halle 1921 8vo. 
259. — Grote, H. Neue Vogelformen. 
Ptyrticus, Poliospiza, Emberiza, Dryo- 
scopus , Laniarius. Anz. Orn. Ges. 
Bay. No. 5 1921 pp. 38-41. 
260. — Grote, H. tiber eine Vogel - 
sammlung aus West-Usarhbara. J. 
Ornith. Leipzig 69 1921 pp. 121-138. 
261. — Grote, H. Vogel der Ukerewe- 
Insel des Victoria-Nyanza. J. Ornitb. 
Leipzig 69 1921 pp. 406-426 457. 
262. — Grote, H. Der Wiederkopf 
( Upupa ) von Ober-Birma. Ornith. 
Monatsber. Berlin 29 1921 p. 50. 
263. — Grote, H. Eremomela pusilla 
tessmanni nov. subsp. von Neu- 
Kamerun. Orn. Monatsb. Berlin 29 
1921 pp. 84-85. 
264. — Grote, H. Pentholaea albifrons 
reichenowi nov. subsp. Orn. Monatsb. 
Berlin 29 1921 p. 93. 
265. — Grote, H. Erythropygia 
quadrivirgata rovumae nov. subsp. 
Orn. Monatsb. Berlin 29 1921, pp. 109- 
110 . 
266. — Gu6rin, C. Nidification anor- 
male du Busard Montagu. Itev. 
Fr. d’Orn. Paris 13 1921 pp. 166-167. 
Gu6rin, C. vide Raspail. 
267. — Gurney, J. H. Early Annals 
of Ornithology, pp. iv + 240 1 pi. 
1 map 35 text-figs. London (Witherby) 
1921 8vo. 
269. — Gurney, J. H. Ornithological 
notes from Norfolk for 1920. 27th 
annual report. Bt. Bds. London 14 
1921 pp. 242-252. 
269. — Gurney, J. H. The late H. M. 
Upcher. Brit. Bds. London 15 1921 
pp. 16-17. 
270. — Gurney, J. H. Obituary : 
Henry Morris Upcher. Ibis London 
1921 pp. 540-543. 
271. — Hafferl, A. Zur Entwicke- 
lungsgeschichte der Kopfarterien beim 
Kiebitz. {V anellus cristatus). Anat. 
Hefte Wiesbaden I. Abth. 59 1921 
pp. 521-574 6 plates 6 text-figs. 
272. — Hall, R. Australian bird 
maps. pp. 1-220 3 pis. 101 maps 
Hobart (publ. by author) 1922 sm. 8vo. 
