562 Recently published Ornithological Works. 



Ta-tsien-loOj well known to us from the researches of Pere 

 David, in the following June. Here they became the guests 

 of Bishop Biet, and hence they despatched their collections 

 to Europe. 



The bird-skins obtained^ which consisted of several hundred 

 specimens^ are referred by M. Oustalet to 216 species. Most 

 of the novelties have already been named in an article pub- 

 lished in 1892^^ but we observe at least one species [Chryso- 

 mitris bieti from Ta-tsien-loo) now first characterized as 

 distinct from C. tibetana. 



A good series of rare Game Birds appears to have been 

 procured, amongst which are a new Tetraogallus {T. henrici) 

 fiom Ta-tsien loo, several skins of Lophophorus Ihuysi from 

 the same district, and 14 specimens of a Crossoptilon also 

 from Ta-tsien-loo, upon which M. Oustalet gives us an ex- 

 cellent disquisition. He is of opinion that tlie so-called 

 C drouyni and C. leucurum are not really separable from 

 C. tibetamim. 



Appended to this instructive memoir are three good 

 coloured plates drawn by Keulemans, which represent Tro- 

 chalopteron ellioti bonvaloti, T. henrici, Pomatorhinus mac- 

 clellandi dedekensi, Propyrrhula stibhimalayensis, and Tetrao- 

 yallus henrici. 



90. Parrot on the Size of the Heart in Birds. 



[Ueber die Grosseuverhaltnisse des Herzeus bei Vogelo. Von I)r, 

 med. Carl Parrot in Miinchen. Zoologisches Jahrb. vii. p. 49G.] 



The author has examined the hearts of a large number of 

 species belonging to all the principal families from the point 

 of view of their relative weight. The differences between 

 various birds are enormous, and range between 4*09 (body- 

 weight 1000) for the " Haselhuhn " and 25-64 for the Thrush. 

 The mammalian heart is heavier in proportion than that of 

 some birds, but it never reaches the astonishing weight shown 

 by the Thrush and a good many Limicolse. As regards the 

 reasons for the development of a large and heavy heart, it is 



* "Contributions a la Fanne de la Chine et du Tibet." Par E. Oustalet. 

 Ann. Sc. Nat. Zool. 7' s6v. xii. p. 277. 



