20 Axes. 
xv. Aves. 
[1921] 
472. — Meinertzhagen, R. Some 
thoughts on subspecies and evolution. 
Ibis London 1921 pp. 528-537 ; see 
also M. D. Haviland pp. 752-754. 
473. — Meinertzhagen, R. Notes on 
some birds from the Near East and 
from Tropical East Africa. Ibis 
London 1921 pp. 621-671 map. 
Meinertzhagen, R. vide Jourdain. 
474. — Mellerio, A. Observations 
ornithologiqpes faites en Vendee. Rev. 
Er. d’Orn. Paris 13 1921 pp. 78-80. 
475. — Mellor, J. E. M. A note on 
the Ruff, Machetes pugnax, a bird 
found at Wad Medani, Sudan. Sudan 
Notes Rec. Khartoum 4 1921 pp.195- 
198. 
476. — Menegaux, A. Quelques 
oiseaux des environs de Dakar et du 
Sahara. Rev. Fr. d’Orn. Paris 13 
1921 pp. 59-60. 
477. — Menegaux, A. Enquete sur 
la disparition du Moineau. Rev. Fr. 
d’Orn. Paris 13 1921 pp. 41-42 127-128. 
478. — Menzbier, M. und Schnitnikow, 
W. Der Saxaulhalier des Iligebiets. 
Uebersetzt von H. Grote. J. Ornith. 
Leipzig 69 1921 pp. 527-535. 
479. — Mercier, A. Deux interessant 
contrefacteurs. L’Hypolais contre- 
faisant. Le Rousserolle des marais. 
Gerfaut Bruxelles 11 1921 pp. 19-23. 
480. — Merikallio, E. Kolme lintu- 
harvinaisuutta [Bird notes]. Medd. 
Soc. Fauna et FI. Fenn. Helsingfors 46 
1921 pp. 15-20 [German synopsis 
pp. 217-218]. 
481. — Millar, A. J. The nesting 
habits of the Trumpeter Hornbill. 
Bycanistes bucinator. S. Afr. J. Nat. 
Hist. Pretoria 3 1921 pp. 217-219. 
482. — Miller, L. A synopsis of 
California‘s fossil birds. Condor 
Berkeley Cal. 23 1921 pp. 129-130. 
483. — Miller, R. C. The flock 
behavior of the Coast Bush-tit. 
Condor Berkeley Cal. 23 1921 pp. 121- 
127 map. 
484. — Miller, R. C. The mind of the 
flock. Condor Berkeley Cal. 23 1921 
pp. 183-186. 
485. — Miller, W. de W. & Griscom, 
L. Descriptions of proposed new birds 
from Central America with notes on 
other little-known forms. Amer. 
Mus. Novit. New York No. 25 1921 
pp. 1-13. 
486. — Miller, W. de W. & Griscom, L. 
Notes on Ortalis vetula and its allies. 
Auk Lancaster Pa. 38 1921 pp. 44-50 
455. 
487. — Millet-Horsin, Dr. Souvenirs 
d’un naturaliste en Afrique Occi- 
dentale Fran 9 aise. A. Au Togo. 
L’Oiseau Paris 2 1921 pp. 16-19 50-53 
75-80. 
488. — Millet-Horsin, Dr. Guide de 
l’amateur d’oiseaux debarquant sur 
la terre d’ Afrique. Rev. Fr. d’Orn. 
Paris 13 1921 pp. 97-101 134-137 
167-171 180-182. 
489. — Millet-Horsin, Dr. New sub- 
species of Phalacrocorax and Halcyon. 
Rev. Fr. d’Orn. Paris 13 1921 pp. 177- 
178. 
490. — Mills, R. R. The relation 
of birds to crops. Agric. Gaz. Canada 
Ottawa 8 1921 pp. 69-70. 
491. — Milojevic, B. D. Sur les 
alterations des characteres sexuel 
secondaires chez un Coq tubercululeux. 
C. R. Soc. Biol. Paris 85 1921 pp. 89-91. 
492. — Minoura, T. A study of 
testis and ovary grafts on the hen’s 
egg and their effects on the embryo. 
J. Exp. Zool. Philadelphia 33 1921 
pp. 1-61 1 text-fig. 10 plates 
493. — Momiyama, T. Notes on the 
habits of Richardson’s Skua. Tori 
Tokyo 3 No. 11 1921 fig. 
494. — Morse, A. P. A Sheld Duck 
( Tadorna tadorna 1 j. ) from Essex 
County, Mass. Franklin’s Gull in 
New England. Bui. Essex Co. Orn. 
Cl. Salem 1921 pp. 68-69 photo. 
495. — Mortensen, H. C. C. Maerkede 
Maager ( Larus ). Dansk Orn. Tids. 
Kjobenhavn 15 1921 pp. 47-48. 
496. — Mouquet, A. Quelques cas de 
tuberculose aviaire. Typhose aviaire 
(Autruche et Milan). Bui. Museum 
Paris 1921 pp. 272-278. 
