N. A. McDonald, Siam: Its Government, Manners, Customs…
“ Leaving Singapore, and passing through the strait, up the peninsula, over the lower part of the China sea, and up the gulf of Siam about eight hundred miles, you come to the kingdom of Siam, sandwitched between Cambodia on the east and Burmah on the west, extending from about latitude 4° to 22° north, and from longitude about 98° to 104° east; consequently there is neither frost or snow, but perpetual summer reigns. The leaves fall and are replaced by new ones, whilst those who are daily witnesses to it scarcely notice the change. ”
