' 1920 J Recent Literature. ' ool 



Oberholser, H. C. An All-day Bird Trip at Washington, D. C. 

 (Amer. Midi. Nat., VI, pp. 103-110, 1919.) 



Duerden, J. E. New Adaptive Callosity in the Ostrich. (Records 

 Albany Museums, Africa, III, No. 3, September 30, 1919, pp. 190-195.) 

 A median ankle callosity has apparently become hereditary while an 

 accessory one has not. 



Philpott, Alfred. Notes on the Birds of Southwestern Otago. (Trans. 

 and Proc. New Zealand Institute, LI, September, 1919, pp. 216-224.) 

 Thirty species listed. 



Duerden, J. E. Breeding Experiments with the North African and 

 South African Ostriches. V. Crossing the N. and S. African Ostriches. 

 (Bull. No. 3, Dept. Agric. Union of South Africa, 1919.)— One hundred 

 hybrids have been raised and two chicks of the second hybrid generation 

 have now been reared. 



Bond, C. J. On Certain Factors Concerned in the Production of Eye 

 Colors in Birds. (Jour, of Genetics, December, 1919, pp. 69-81.) 



Pearson, K., and Others. On the Nest and Eggs of the Common 

 Tern (S. fluviatilis). A Cooperative Study. (Biometrika, XII, Part III— 

 IV, November, 1919, pp. 308-354.) — Mathematical relationship between 

 dimensions and coloration of eggs and structural characters of nests. 

 Some admirable photographs of the birds are presented in illustration. 



Rollinat, R. Breeding of the Eagle Owl in Captivity. (Bull. Soc. 

 Nat. d'Acclimat. de France, Year 67, No. 10-11, October-November, 

 1919.) [In French.] 



Bartels, M. On Some Birds New to Java. (Treubia. Recuil de 

 Travaux. Zool. Hydrobiol. et Oceaogr., August, 1919, I, Pt. 2, Batavia, 

 pp. 51-52.) [In German.] — Accipiter gularis, Eurystomus calonyx, Por- 

 zana pusilla, Tringa canutus, Sula longipennis, S. sula. 



Oudemans, A. C. Dodo Studies. (Verhandl. der Kon. Akad. Weten- 

 shap. Amsterdam, XIX, No. 4, June, 1917.) — An elaborate historical 

 account of the Dodo and its allies, with bibliographies and lists of pub- 

 lished illustrations, many of which are reproduced. The species are 

 given as Raphus cucullatus Linn., Apterornis solitarius Selys., and Pezo- 

 phaps folitarius Gm. [In Dutch.] 



Schouteden, H. Contribution to the Ornithological Fauna of the 

 Lower Congo. (Rev. Zool. Afracaine, VII, No. 2, October 1, 1919, pp. 

 188-192.) Forty species listed.— [In French.] 



Hahn, Erna. On Color Perception of Diurnal Birds and the Oil 

 Gland of the Eye. (Zeitschr. Wissen. Zool, CXVI, I, pp. 1-42.) [In 

 German.]— Considers that the secretion of colored oils in the eyes of 

 different species affects the extent of their color perception. 



Noll-Tobler, H. Remarks on Our Native Rails. (Jahrb. St. Gal- 

 lischen Naturw. Gesell., 54, pp. 209-245, 5 plates.) [In German.] An 

 excellent account of the breeding of the Rails of Central Europe, with 

 admirable photographic reproductions. 



