39 Ave^. 
Subject Index. — Variation, Etc. 
5823 
Bird-marking and Fly-routes. 
Baldwin, 49; Falz-Fein, 231 ; Hey- 
der, 841 ; Hildebrandt, 343 ; Luoamis, 
445, 446 ; Rendall, 609 ; Robinson, 
635; Thienemann, 753; Witherby, 
823, 824, 825. 
FUght. 
Eckardt, 217 ; Houssay, 359 ; Lilien- 
thal, 427. 
Parental Relations. 
Evans, 229 ; Macintyre, 457. 
Sexual Relations and Display. 
Carpenter, 123; Huxley, 368; Le 
Souef, 423. 
Nidification (General Problems). 
Belcher, 68; Bent, 72; Bunyard, 
108; Cathelin, 125, 126; Morgan, 
507 ; Mousley, 609 ; Nichols, 618; 
Schuster, 671 ; Wibeck, 803. 
Nidification (Regional obser- 
vations). 
Holland : De Vries, 195. 
Switzerland : Bachler, 25. 
Russia: Cordes, 171. 
Eoytt: Koenig, 899. 
India: Baker, 39;'^ Donald, 201; 
Hopwood, 355; Jones, 876, 377 ; 
Whistler, 791. 
Siam: Baker, 38; Williamson, 815. 
Sumatra : Beaufort & Bussy, 62. 
Australia : Ramsay, 600 ; Whitlock, 
802. 
Argentina: Doello-Jurado, 200; 
Gibson, 263 ; Reed, 603. 
Galapagos Is.: Gifford, 264. 
United States: Bartsch, 60 ; Pear- 
son & Brimley, 580 ; Williams, 809. 
Nidification (observations on single 
species, Pfc- III. Systematic). 
Bacmeister, 27, 28; Bradbury, 94, 95'; 
Bunyard, 107; Carriger & Wells, 124; 
Cheesman &> Buxton, 133 ; Chisholm, 
137 ; Dawson, 193 ; Dove, 206 ; 
Dubois, 207 ; Ekblaw, 222, 224 ; 
Evermann, 230; Gilbert, 265, 266; 
Gillespie, 269; Gunthorp, 292; Hesse, 
335; Jackson, 374; Jourdain, 382; 
Eitchin, 393 ; Krohn, 407 ; Mackenzie, 
458; M’Gilp; 466; Munro, 614; 
Oldham, 567 ; Owed, 672 ; Pike, 690 ; 
Ray, 645; Richards, 612; Rowan, 
642 ; Rust, 645 ; Schlegel, 664, 666 ; 
Shaver, 687 ; Shufeldt, 689 ; Steen- 
huizer, 709; Stewart, 716; Thomson, 
755 ; Turner, 771 ; Van Fleet, 773 ; 
Wayne, 782; Whistler, 794; White, 
797 ; Willett, 807 ; Worcester, 829. 
Voice. 
General Observations : Allen, 11; 
Burkitt, 110; Hagen, 299; Hoffmann, 
346; Mousley, 509; Saunders, 663; 
Sutton, 736 ; Zimmer, 835. 
On the song or note of : Bonasa, 
Tuttle, 772 ; Pernis, Hesse, 335 ; 
DryohateSf Huxley, 367 ; ReguluSf 
Saunders, 654 ; Gorvus, Allen, 9. 
Psychology. 
Adlersparre, 3; Allen, 9; Cathelin, 
126 ; Gladstone, 272 ; Ponlton, 598. 
Colour and Moult. ^ 
Blaauw, 80; Butler, 114; Jackson, 
372; Someren, 698; Stresemann, 723 
p. 12, 728. 
Pathology. 
McCnrrison, 462 ; Wetmore, 790. 
Avian Parasitology. 
Arnold, 20 ; Plath, 594, 595. 
Mortality. 
Meade-Waldo, 477. 
VARIATION AND AETIOLOGY. 
6823 
Variation. 
Baker, 47 ; Buchner, 104 ; Duerden, 
208; Grinnell, 283 ; Loomis, 441,442. 
Teratology. 
Cole & Lippincott, 163; Danforth, 
190 ; Shufeldt, 688 ; Tannreuther, 742 ; 
Tayler, 751. 
Hybrids. 
Duerden, 209, 210; Lincoln, 429; 
L6nnberg, 432, 435, 437 ; Nichols, 517. 
