56 
AVES. 
Sharpe, R. Bowdler. Notes on Cerchneis vespertina and C. amurensis. 
Str. Feath. 1875, p. 303. 
Gives the differential characters of these species in all stages of 
plumage. 
. Note on the genus Dendrophila. Tom. cit. p. 436. 
Three species are recognized and their distribution given. 
. [See Layard, E. L.] 
Shelley, G. E. Three months on the Coast of South Africa. Ibis, 
1876, pp. 59-87. 
Gives an account of a short expedition to the neighbourhood of Cape 
Town and Natal, and notes on 150 birds collected or observed during the 
time. 
. A few Stray Notes on African Birds. Tom. cit. pp. 379-383. 
\_CaprimulgidcB, Nectariniidce^ Sylviidce, Charadriidce.'] 
SoRBY, H. C. On the Colouring-matters of the Shells of Birds’ Eggs. 
P. Z. S. 1876, pp. 351-365. 
Spectrum analysis was employed in investigating the colouring matter 
of birds’ eggs, and the presence of several different substances traced, and 
names given to them. The author considers that all the varied tints of 
birds’ eggs are due to mixtures of a limited number of colouring matters 
having well-defined specific characters. Apparently (except in one par- 
ticular case), there is no intimate connection between the organization of 
the birds and the colouring-matter secreted, and there is a probability 
that these substances are naturally formed only during the development 
of the eggs of birds, giving rise to important questions in relation to 
comparative physiology. 
Stejneger, Leonh. Ornithologisches aus Norwegen. J. f. 0. 1875, 
p. 167. 
Records the occurrence of Motacilla flava^ XJpupa epops, Pagophila 
ehurnea, and Puffinus major in Norway. 
Stolker, Carl. Ueber Schnabelmissbildungen. Ber. St. Gal. Ges. 
1873-74, pp. 453-480, 2 plates. 
Treats of the malformation and abnormal growth of the bill in many 
species of birds. • 
Stoliczka, Ferdinand. The Avifauna of Kashgar in Winter. Str. 
Feath. 1875, pp. 215-220. 
An unfinished letter, and the last written by the author, giving a brief 
summary of the birds he observed during the winter in Kashgar. The 
names of the species are in many cases supplied by A. O. Hume. 
Swinhoe, R. Ornithological Notes made at Chefoo (Province of Shan- 
tung, North China). Ibis, 1876, pp. 114-140. 
The conclusion of the paper on this subject, commenced in the Ibis 
for 1874. The whole number of species treated of is 104. {^Rallidoc.'] 
