178 MR. E. C, STUART BAKER ON 
parallel with ‘Tenasserim, to the Malay Peninsula, the birds are nearly 
all Malayan. Thus, within Siam itself, it is quite possible to obtain 
tivo, or even three, sub-species of the same species. 
Much more material is still required before we can definitely 
work out the geographical distribution of its avifauna, and it is to be 
hoped that the excellent work done by Count Gyldenstolpe and Messrs. 
Robinson and Kloss, Williamson, Herbert and Gairdner will be con- 
tinued with the same success as hitherto. 
Such deductions as it may be possible to make when the 
examination of the collection is completed will be made in a post- 
script then, instead of the preface now. 
{In publishing the following notes written by Mr. E. C. Stuart 
Baker, 1 wish to express my deepest gratitude to him for his kindness 
in undertaking the task of working out the birds taken home by me, 
and to compliment him on the very thorough way in which he has 
carried it out. Few, I think, will realize the enormous amount of work 
this has entailed, for the Siamese birds have been compared with the 
very large collection of birds in the British Museum, often amounting 
to many hundreds of the same species. 
Mr. Stuart Baker has provided us in Siam with a great deal of 
interesting and most valuable information, and in several instances he 
has given us a direct incentive to further work, by pointing out that a 
better series of Siamese skins is required to determine exactly to 
which sub-species the birds belong. ‘The notes will also have a more 
far-reaching effect, in that they will provide a useful work of reference 
for those who study the birds of India, as well as other countries farther 
Kast. 
Some of the birds appearing in the following notes have 
already been described by Mr. Stuart Baker as new sub-species in the 
B. O. C. Bulletins, and in notes in the “Ibis”, and unfortunately the 
names of the lvcalities from which they were obtained were not cor- 
rectly epelt on the labels, which has led to some confusion. Puk Jong 
on the Korat railway line is in Kastern Siam, and there can be little 
doubt that, through incorrect spelling, this has been taken to be Pal 
Chan in Renong, which is in Peninsular Siam, The zoogeographical 
divisions, as generally used in this Journal, ave now given after the 
name of each locality. 
JOURN. NAT, HIST. SUC, SIAM. 
