1922.] Recently puhlished Ornithological Works. 209 



(continued from the previous year) on the birds of Pripjet 

 Swamp on the Russian and Polish borders, from which 

 over 240 species have been recorded. 



Dr. H. Grote contributes an account of a collection of 

 birds from the Usambara country in Tanganyika Territory 

 made by a missionary, Karl Roehl, in 1904-7, now in the 

 Berlin ^luseum. About 20 new subspecies were contained 

 in it, but most of these had been previously described by 

 Dr. Reichenow. Another long fauual paper by Mr. L. 

 Schuster deals with the Birds of north-eastern France 

 from observations made by himself and others during the 

 recent war-years. Dr. A. Koenig continues liis survey of 

 the Birds of Egypt, in the present instalment dealing with 

 the Laniidae, jMuscicapid?e, and Nectariniidae. 



Of more general articles. Dr. F. von Lucanus contributes 

 a discussion on mimicry in Cuckoo's eggs. He gives a list 

 of thirty hosts, and in a table shows that of 765 Cuckoo's 

 eggs, in 575 instances these very closely resembled those of 

 the host, in 168 they were quite unlike, and in 22 instances 

 fairly like. Out of the 168 unlike clutches, 120 were taken 

 f lom the nest of Troglodytes troglodytes. Mr. W. R. Eckardt 

 writes a good review of the work of American ornithologists 

 on bird-migration in the New World, and Mr. H. Krohn 

 discusses the colour-sense in birds. Mr. H. Poll writes on 

 the sexual proportions among hybrid birds, and this is the 

 only paper illustrated by a coloured plate. Finally, there is 

 a translation of a Russian memoir by Prof. M, Menzbier 

 and W. Schnitnikov, jjublishcd in 1915, on the species of 

 Podoces in Tuikestan, and containing a description of 

 P. panderi ilensis which will be found mentioned on 

 p. 2035 of the recently jiublished part of Hartert's Vt5g. 

 pal. Fauna. 



Journal of the Museum of Comparative Oology, 



[The Journal of the Miuseuin of Comparative Oology, ii. Nos. 1 & 2, 

 1921. Santa Barbara, California, U.S.A.] 



The second volume of the Journal of the Museum of 



SER. XI. VOL. lA'. P 



