1898] GULAR POUCH OF THE GREAT BUSTARD 323 
7. Gadow, H.—Article ‘‘ Air-sacks,” in A. Newton, Dictionary of Birds. 1896. 
8. Garrod, A. H.—‘‘On the ‘ Showing-eff’ of the Australian Bustard (Eupodotis aus- 
tralis).” Proc. Zool. Soc, 1874. P. 471-3. 1874, 
9. Garrod, A. H.—‘‘ Further Note on the Mechanism of the ‘ Show-off’ in Bustards.”’ 
Proc. Zool. Soc. 1874, P. 673, 1874. 
10. Meckel.—Traité Général d’anat. Comp. viii. p. 236. 
11. Murie, J.—‘‘ Observations concerning presence and function of the Gular Pouch in 
Otis kori, and O. australis. Proc. Zool. Soc. 1868, P. 471. Pl. xxxvi. 1868. 
12. Murie, J.—‘‘ Note in the Sublingual Aperture and Sphincter of the Gular Pouch in 
Otis tarda. Proc. Zool. Soc. 1869, P. 140. 1869, 
13. Naumann.—Naturgesch. der Vogel Deutschl., vii. pp. 10, 20-21. 1834, 
14. Newton, A.—‘‘On the supposed Gular Pouch of the Male Bustard (Otis tarda, 
Linn.).” Proc. Zool. Soc. 1862. Pp. 107,127. 1862. 
15. Owen.—Article ‘‘ Birds ” in Todd’s Cyclopaedia Anat. and Physiology. 
15a Peyronie.— Voyages de M. P.S. Pallas, iv. p. 309. 1793, 
16, Schneider.—(Reliqua Librorum Friderici II. Imperatoris, &c.) 1788. i, p. 34. 
17, Tristam.—Ornith. N. Africa, Jbis. Vol. i., ser. 1, p. 285, 1859. 
18. Yarrell.—Trans. Linn. Soc. xxi., pp. 159, p. 160. 1853. 
