178 U.S. NATIONAL MUSEUM BULLETIN 22 3 



Roberts, Austin 



1907. Remarks on the breeding-habits of the pin-tailed widow bird {Vidua 



principalis). Journ. South African Ornith. Union, vol. 3, pp. 9-11. 

 1909. Pyromelana oryx and its nesting parasites. Journ. South African 



Ornith. Union, vol. 5, pp. 22-24. 



1912. Notes on a collection of birds in the Transvaal Museum from Boror, 



Portuguese East Africa, pt. II. Journ. South Africa Ornith. Union, 

 vol. 8, pp. 22-61. 



1913. Egg collecting in the bushveld. Journ. South African Ornith. Union, 



vol, 9, pp. 1-45. 

 1917. Parasitism amongst finches. Ann. Transvaal Mus., vol. 5, pp. 



259-262. 

 1926. Some changes in nomenclature, new records of migrants and new 



forms of S. African Birds. Ann. Transvaal Mus., vol. XI, pt. IV, 



pp. 217-225. 

 1928. Birds and mammals from South West Africa. Ann. Transvaal Mus., 



IV, vol. 12, pp. 289-329. 



1930. Some recent important records of South African birds. Ostrich, 



vol. 1, pp. 61-68. 



1931. The classification of the higher vertebrates. South African Biol. 



Soc. Pamphlet No. 3., pp. 12-14. 

 1935. Scientific results of the Vernay-Lang Kalahari expedition, March 

 to September, 1930. Birds Ann. Transvaal Mus., vol. 16, pp. 

 1-185, 1 pi., 1 map. 



1939. Notes on the eggs of parasitic birds in South Africa. Ostrich, vol. 



10, pp. 100-117. 



1940. The birds of South Africa, Loudon, Witherby, xxxii + 463 pp., 41 pis. 

 1943. [Editorial comment on C. H. Jerome's paper.] Ostrich, vol. 14, p. 102. 



Roberts, Noel 



1909. Pyromelana oryx and its nesting parasites. Journ. South African 

 Ornith. Union, vol. 5, pp. 22-24. 



Robertson, A. L. 



1946. Parasitism of paradise widow bird. Ostrich, vol. 17, No. 3, p. 209. 



Robertson, A. R. 



1949. Breeding successes in South Africa. Avicultural Mag., vol. 55, No. 

 5, pp. 158-159. 



Robertson, P. R. 



1934. [Notes.] Ostrich, vol. 5, pp. 25-26. 



RoLLO, Marie 



1941. Photoperiodism and migration. Bird-banding, vol. 12, pp. 161-164. 



RoLLo, Marie, and Domm, Lincoln V. 



1943. Light requirements of the weaver finch. I. Light period and in- 

 tensity. Auk, vol. 60, pp. 357-367. 



Ross, Herbert H. 



1957. Principles of natural coexistence indicated by leafhopper populations. 

 Evolution, vol. 11, pp. 113-129, 



Rothschild, Miriam, and Clay, Theresa 



1957. Fleas, flukes and cuckoos, ed. 3, London, Williams Collins, 305 pp., 

 40 pis. 



