582 Recently published Ornithological Works. 



has been made in the systematic arrangement of the groups 

 in the second edition, although during the nine years inter- 

 vening between the publication of the two editions much has 

 been done to bring the taxonomy of birds into an improved 

 condition. 



122. Wilson and Evans's ' Aves Hawaiienses.' 



[Aves Hawaiienses : tbe Birds of the Sandwich Islands. By Scott B. 

 Wilson, F.Z.S., assisted by A. H. Evans, M.A., F.Z.S. Part VI. July 

 1896. 4to. London : R. H. Porter.] 



We welcome the arrival of Part vi. of Messrs. Wilson and 

 Evans's 'Aves Hawaiienses' ; the issue of this work having 

 been interrupted since April 1894, when Part v. was 

 published. The new part contains well-drawn plates of 

 the following species : — 



Phfeornis palmeri. Hemignathus affinis. 



Chasiempis sandvicensis. Himatione newtoni. 



sclateri. wilsoni. 



gfiyi- virens. 



Loxops aurea. chloris. 



nifa. Fulica alai. 



Pseudonestor xanthophrys. 



Mr. Wilson announces that he has determined to revisit 

 the Sandwich Islands in order to aid in their complete orni- 

 thological exploration, and that by the time Part vi. is read 

 by his subscribers he hopes to have safely reached Honolulu. 

 The concluding part of the work will appear on his return 

 from what he trusts may be a successful excursion. 



123. Witchell on the Song of Birds. 



[The Evolution of Bird-Song. By Charles A. Witchell. London : 

 A. and C. Black, 189G.] 



Mr. Witchell is to be congratulated on having produced a 

 highly readable little work upon a subject of great interest. 

 The volume is partly a detailed record of a number of obser- 

 vations taken by the author and partly an attempt to explain 

 the general phenomena of the diversity and complications of 

 the songs of birds. As the author has taken so much pains 

 with the storing of his facts, he is, to our mind^ perfectly at 



