Fevers are not common amongst Europeans, in Manila. Amongst the natives, the intermittent is of common occurrence, particularly after the rains (in September and October), and in woody or marshy situations. [40] This appears to be owing as much to the thinness and want of clothing, together with their habits of bathing indiscriminately at all hours, as to miasmata; and, as their fevers are generally neglected, they often superinduce other and more fatal disorders, as obstructions, &c. Tetanos in cases of wounds is of common occurrence, and generally fatal. Their population, by a census taken in 1817-18, amounted to 2,236,000 souls, and is increasing rapidly. In one province, that of Pampanga, from 1817 to 1818, there was an increase of 6,737 souls, the whole population being in 1817, 22,500; but I suspect some inaccuracy in this. The total increase from 1797 to 1817, 25 [sic] years, is by this statement 835,500, or 3,360 per annum! In this census are included only those subject to Spanish laws. About three quarters of a million more may be added for the various independent tribes, [41] which may be said to possess the whole of the interior of the islands, on some of which, as the large one of Mindanao (called by the natives Magindanao) there are only a few contemptible [Spanish] posts, the interior and a great part of the coast being still subject to the Malay sultans, originally of Arab race. The population of the Marianas and Calamianes Islands, with that of Palawan, which are all included in "The Kingdom of the Phillippines," are comprised in this number, but the whole of these does not exceed 19,000. Of this number about 600 only are European Spaniards, with some few foreigners: the remainder are divided into various classes, of which the principal are, 1st, The Negroes, or aborigines; 2d, the Malays (or Indians, as they are called by the Spaniards); and the Mestizos and Creoles, who are about as 1 to 5 of the Indian population. The Negroes [i.e., Negritos] [42] are in all probability the original inhabitants of these islands, as they appear at some remote epoch to have been of almost all the eastern archipelago. The tide of Malay emigration, from whatever cause and part it proceeded, has on some islands entirely destroyed them. Others, as New Guinea, it has not yet reached, a circumstance which seems to point to the west as the original cradle of the Malay race. In the Phillippines, it has driven them from the coast to the mountains, which by augmenting the difficulty of procuring subsistence, may have much diminished their numbers. Still, however, they form a distinct, and perhaps a more numerous class of men than is generally suspected. They have in the present day undisturbed possession of nearly 2/3ds of the island of Luzon, and of others a still larger proportion.