116 Recently published Ornithological Works. 



16. Leverkiihn on Valuations in the Coloration of Birds. 



[Ueber Farbenvarietaten bei Vogeln. Von Paul Leverkiibn. J. f. O. 

 1889, p. 121.] 



Herr Leverkiihn continues his account of cases of general 

 or partial albinism and other variations in colour which occur 

 in various birds. The present article contains his notes on 

 examples of such cases observed during a visit to the Museums 

 of Bremen, Gottingen, and Kiel — altogether in 41 species. 



17. Leverkiihn on the Literature of Syrrhaptes. 



[Litterarisches iiber das Steppenbubn, zweite Revue, nebst Original- 

 Mittheilungen iiber die 1888er Invasion, von Paul Leverkiibn. Monatsscb. 

 Deutscb. Ver. Scbutze Vogelw. xiv.] 



The number of papers and articles on this well-worn 

 subject is very large. Herr Leverkulm's second attempt at 

 some account of it gives us references to more than 200 

 titles, and other information which may be useful to those 

 at work on it. Seven eggs laid in North Germany and 

 Jutland are described. The supposed eggs from Kent re- 

 ferred to by the author are now well known to be suppo- 

 sititious. 



18. Menzbier and Severtzow on the Ornithology of Turkestan. 



[Dr. N. A. Severtzow. Ornithologie du Turkestan et des Pays adjacent, 1 ?. 

 Par M. le Docteur M. A. Menzbier. Liyr. 2. Text and Atlas. Folio. 

 Moscou: 1889.] 



We have already noticed (Ibis, 1889, p. 388) the first 

 livraison of this important work, and given some indication 

 of its origin and scope. The second livraison now before us 

 continues the account of the Diurnal Raptores. The accom- 

 panying atlas contains coloured lithographs of Hierofalco 

 uralensis (two plates) and Leptopcecile sophice. 



It appears that the whole work will extend to six volumes, 

 which can only be acquired by subscription to the amount of 

 £30. Mr. R. H. Porter is the English agent for this 

 publication. 



