NOTE. 



In the preface to the present volume, written in 1921, it was 

 stated that in addition to an account of the Birds of South-west and 

 Peninsular Siam one of the Mammals also would be prepared by 

 Mr. H. C. Robinson and myself. The final part on the birds was 

 issued in September 1924 and thereafter circumstances rendered it 

 impossible for my late colleague and myself to collaborate on the 

 projected accounts of the mammals, or for one or other of us to 

 prepare it by himself. 



The report on the Birds is sufficiently lengthy to form by 

 itself a volume, which, I understand, will be closed with the issue of 

 an index. Since the report was completed there have been a few 

 additions to the fauna of the area dealt with, two or three birds have 

 been separated, with new names, as distinct local races; and there 

 have been a number of changes in the nomenclature we used — this 

 last a change to Avhich the names of birds, more or less all over the 

 world, are now being subject. 



One list of addenda and corrigenda has already been printed 

 (pp. 209 — 218), but I do not propose to offer another as the necessary 

 alterations should be fairly obvious to the ornithologist who keeps 

 himself au fait with current literature. 



Singapore, 13th November, 1930. C. Boden Kloss. 



EDITORIAL NOTE. 



The first three numbers of this volume were published by 

 the Natural History Society of Siam. The fourth, or index number, 

 is published by the Siam Society, with which the Natural History 

 Society amalgamated in 1925. 



