hy a Slave of the King's Eldest Son. ^71 
Cochinchina and Tonquin. The Mraiimas in general call the 
people of both these countries Kio ; and in fact they form one 
nation, assuming to themselves Angnam as a common name^ 
and speaking one language, called Anamitic, of which Alexan- 
der de Rodez has published a dictionary and grammar. Kio’ 
Kachin is, however, no doubt the source from which we derive 
the Cochin of China, to distinguish it from the Cochin of In- 
dia ; and this part of the Anamitic nation having for some time 
been by far the most powerful, the compiler of the map ha^ 
satisfied himself by mentioning it alone. The more especially 
as, when it was compiled, a large proportion of Tonquin seemsf 
to have been subject to Ava, forming the principality of the 
Tarout Shan. The Mianmas, however, often distinguish the 
two divisions of the Kio, or Anamitic people, by calling the 
northern Kiobiain, and the southern Kiodain. 
I have already mentioned, that China is by the Mranmas 
called the country of the Tarout, which accordingly occupies 
all the north-eastern part of the map. 
Art. X. — Ori the Changes of Colour in the Feathers (f Birds ^ 
independent of Moulting. In a Letter from the Rev. John 
Fleming, D.D. F.R.S.E. & M. W. S. to Professor Jameson, 
My dear Sir, 
Ijiving at a distance from the seat of Science, it is only with- 
in these few days that I have had an opportunity of perusing 
the second part of the twelfth volume of the Transactions of 
the Linnean Society. The pleasure attending the examina- 
tion of its contents was greatly heightened, when I perceived 
many illustrative examples of the truth of an opinion which I have 
entertained for many years, namely, That the colours of the 
hair of quadrupeds, and the feathers of birds, change with the 
season, independent of the ordinary processes of casting and 
moulting^ That this opinion has not been generally adopted, 
need not excite any surprise, when we consider that many zoolo- 
gists regard the feathers as destitute of every kind of circula- 
tion, and therefore subject to no other change than that which 
is produced by external agents. When I began, in reference 
