VoL ^ XVI ] Recent Literature. 599 



It follows essentially the plan of the 'Auk ' index, except that the subhead- 

 ings under which the references are arranged are not italicized, while the 

 volumes are indicated by number instead of year and are not printed in 

 heavy-faced type. The use of italic would, we think, have made it easier 

 for the eye to catch the desired reference, but that is a minor point. The 

 compiler has done his work well and is to be congratulated upon the com- 

 pletion of a thankless task, but one that will save time and trouble for 

 hundreds of others who may have occasion in the future to consult these 

 volumes of ' The Condor.' The value of such an index as Mr. Pemberton 

 has prepared is emphasized in a summary of such publications, which 

 appears in ' Notes and News ' of the present issue of ' The Auk.' 



Besides the Index proper there is a list of persons mentioned in the ' First 

 Ten-Year Index,' but whose names were not there given in full. The miss- 

 ing data have now been supplied largely by Dr. T. S. Palmer and the names 

 now appear in complete form. Such corrected lists almost invariably con- 

 tain new errors, and we notice in this instance that Dr. W. L. Ralph's name 

 appears as ' Rolph,' while that of Mr. R. P. Sharpies has an additional ' s.' 

 Both of these were correctly spelled in the first index. It goes without 

 saying that everyone who possesses a file of ' The Condor ' must have this 

 volume. — W. S. 



Riley on New Birds from Celebes and Java. 1 — A further study of the 

 collection of Celebes birds made recently by Mr. H. C. Raven (cf. Auk, 

 1919, p. 302) has revealed five apparently unnamed forms from that island 

 and one from Java. These are described by Mr. Riley as follows: from 

 Java, Excalfactoria chinensis palmeri (p. 93); from Celebes, Anas super- 

 ciliosa percna (p. 93), Megalurus celebensis (p. 94), Dicruropsis montana (p. 

 94), Pachycephala pluviosa (p. 95), and Zosterops atrifrons (p. 95). — W. S. 



Chubb on South American Birds. — The aecond instalment of Mr. 

 Chubb's notes on South American collections in the British Museum 2 

 covers all the families from the Grebes to the Raptores of Sharpe's ' Hand 

 List.' It consists mainly of citation of specimens of interest either from 

 locality or condition of plumage, but one form is described as new Oreophilus 

 ruficollis simonsi (p. 262) from Challapata, Bolivia. — W. S. 



Lonnberg on Hybrid Gulls. — In a recent paper 3 Dr. Lonnberg de- 

 scribes some Hybrid Gulls which were bred in the Zoological Garden at 

 Skanses, Sweden, from the crossing of a male Larus fuscus and a female 



i Six New Birds from Celebes and Java. By J. H. Riley. Proc. Biol. Soc. Washington, 

 Vol. 32, pp. 93-96, May 20, 1919. 



- Notes on Collections of Birds in the British Museum, from Ecuador, Peru, Bolivia, and 

 Argentina. Part II. Podicipediformes — Accipitriformes. By Charles Chubb. The 

 Ibis, April. 1919, pp. 256-290. 



3 Hybrid Gulls. By Einar Lonnberg. With three plates andsix figures in the text. Archiv. 

 for Zoologik. Svenska Vetenskapsakad. Band 12, No. 7. pp. 1-22. 1919. 



