44 Aves. 
XVII. Aves. 
[1918] 
Voice. 
General : Andersen, 10 ; Hawkins, 
338 ; Schmitt & Stadler, 755. 
On the song or call-note of : — 
Phasianidae, Beebe, 72 ; Totanus, 
Tischler, 865; Glaucionetta, Mayhoff, 
536 ; Lanius, Csorgey, 185 ; Certhia y 
Stadler & Schmitt, 817 ; Fringilla, 
Hagen, 309. 
Psychology. 
Mottram, 573 ; Poulton, 667 ; 
Swynnerton, 839 ; Zimmer, 937. 
Colour and Moult. 
Butler, 125 ; Jackson, 386, 387, 
388; Kennard, 406; Kilil6n, 410; 
Lindquist, 465 ; Lonnberg, 477 ; Mot- 
tram & Green, 574; Nyquist, 603, 
604; Ratz, 675; Soderberg, 808; 
Spegazzini, 815. 
Pathology. 
Arbuckle, 16; Aubry, 24; Gallo- 
way, 266; Jablous, 385; Macintyre, 
501 ; Murray, 586 ; Sergent et Sergent, 
784; Wetmore, 894. 
Avian Parasitology. 
Lopez- Neyra, 488; Sergent et Ser- 
gent, 784. 
Mortality. 
Bolam, 96 ; Goelitz, 278 ; Jourdain 
& Witherby, 401 ; Mackenzie, 504 ; 
Squires & Hanson, 816; Theinemann, 
854. 
VARIATION AND AETIOLOGY. 
5823 
Variation. 
Baker, 43 ; Dwight, 238 ; Lucanus, 
492 ; Munsterhjelm, 582 ; Whistler, 
900. 
Teratology. 
Bhattacharya, 86; Boring & Pearl, 
89 ; Hannerz, 314. 
Hybrids. 
Adlersparre, 1 ; Baily, 40 ; Baxter 
& Rintoul, 65, p. 151 ; Ghidini, 269 ; 
Hooiman, 428; Lfinnberg, 482; Palm- 
gren, 650 ; Robinson, 699 ; Silver, 
795. 
Heredity and Evolution. 
Evolution : Kleinschmidt, 412 ; 
Matthews, 524. 
Genetics : Adlersparre, 1 ; Cut- 
ler, 189; Goodale, 280, 281, 282, 
Lebedinsky, 455 ; Lippincott, 467 ; 
Morgan, 570, 571 ; Nuttall, 599 ; Pearl, 
654; Punnett & Bailey, 669; Riddle, 
693. 
Secondary Sexual Characters : 
Goodale, 282 ; Pezard, 659. 
Sexual Selection : Hawkins, 338. 
Influence of External Condi- 
tions : Lebedinsky, 455. 
Fossil and Extinct Birds. 
General : Lambrecht, 442, 443, 
444, 445 ; Munthe, 583 ; Newton, 590 ; 
Shufeldt, 792; Studer, 830; Wetmore, 
892. 
Special Forms Described : Stru - 
thio, Clark, 163 ; Didus, Rothschild, 
717; Jabiru, Sellards, 782 ; Halia'ctus , 
Lonnberg, 478. 
GEOGRAPHY. 5827 
General. 
Heintze, 347. 
PALEARCTIC REGION. 
British Islands. 
British Islands : Anon., 11 ; 
Butterfield, 129 ; Gladstone, 274 ; 
Kleinschmidt, 413, 414 ; Thorburn, 
856. 
Hertfordshire : Bickerton, 87 ; 
Hopkinson, 369. 
Sussex : Alexander, 5 ; Arnold, 
17; Butterfield, 130; Nichols, 593. 
Oxfordshire : Jourdain, 399. 
Somersetshire ; Wiglesworth, 917. 
Dorsetshire : Blathwayt, 92 ; 
Curtis, 188. 
Devonshire : Watkin, 881. 
Cornwall : Chubb, 158. 
Essex: Brown, 116; Jourdain, 
397; Owen, 635; Stubbs, 828. 
Norfolk : Gurney, 302 ; Riviere, 
697 ; Rowan, 721, 724. 
