1918.] Letters, Extracts, and Notes. 187 



(yomraon Guillemot [Uria troille). A well represented 

 and beautiful series of ei'ythristic eggs ; one form at least 

 is normally so. 



Diatryma. 



In the last number of ' The Ibis ' (1917, p. 627) we gave 

 some account of a paper by Messrs. Mathew and Granger 

 on the extinct bird Diatryma. Through the courtesy of 

 the Trustees of the American Museum of Natural History 

 in Central Park, New York City, we are able to reproduce 

 (Plate IV.) photographs of the reconstructed skeleton and 

 also of a restoration of the bird itself, which has been 

 ])repared for exhibition in the Galleries of the American 

 Museum. 



Russian Ornithological Review. 



We regret to hear that M. G. F. Poliakov, the founder 

 and for eight and a half years the editor of the ' Messager 

 Ornithologique/ has been obliged, owing to ill-health, to 

 resign his functions. He is succeeded by Prof. M. A. 

 Menzbier, F.M.B.O.U., under whose able editorship the 

 journal should have a continued prosperous life. 



A new book by Mr. Beebe. 



The New York Zoological Society have recently estab- 

 lished a Tropical Research Station at Kalacoon in British 

 Guiana, of which Mr. William Beebe, M.B.O.U., of the 

 New York Zoological Park, is the chief. Together with his 

 colleagues Messrs. G. Inness Hartley and Paul G. Howes 

 he has recently prepared an account of the Station, its work 

 and surroundings. The volume is entitled " Tropical Wild 

 Life in British Guiana," and may be obtained from the 

 Chief Clerk of the New York Zoological Park, New York, 

 N.Y., U.S.A., price $3. 



