The increase in twenty-six years, from 1792 to 1818, was about sixty per cent.; if to this be added thirty-seven per cent. for the increase in sixteen years, from 1818 to 1834, the population at present amounts to three millions, one hundred and twelve thousand, two hundred and ninety-seven. The island of Luzon had a population of one hundred and forty-nine thousand, six hundred and ninety-five: if to this we add thirty-seven per cent. up to 1834, it will give two hundred and five thousand and eighty two. Of this number, nearly one half is within a circuit of twelve miles of the capital. The number of the negro race, called Aetes, Ygorzotes, or Papuas, was estimated at seventeen thousand, three hundred and fifty-five: this number does not include many thousands, probably, who live among the fastnesses of the mountains. The principal object of the Spanish government in ascertaining the number of inhabitants, was to levy a capitation tax; in some cases as low as one rial per head--in others, twelve rials. The Chinese pay a much higher tax than any other foreigners; the traders, in 1832, paid six dollars per annum--the common labourers, half that amount. The latter tax forced many of the poorer class to emigrate: the Spanish government is afraid of them, and wishes also to employ the natives of the country; it therefore laid this heavy impost for the purpose of driving them away. No foreigners have permission to remain there, even to this day, as permanent settlers: they are liable to be ordered out of the country by the governor at any moment, and this right is not unfrequently exercised. The island of Luzon, which derives its name from Luzong, a large wooden mortar used by the natives for cleaning rice, was discovered in 1521, and in 1571, Manila was founded. The discoverers found the country about Manila thickly settled with an active people called Tagalor; at the north of this nation they met with and conquered the Pampangoes, Zambales, Pangasinanes, Yloeds, and Cagayanes: at the eastward of the Tagaloes were the Camarines. Each of these was a distinct people, having a particular language. None of them had a sovereign or chief magistrate; they were divided into a great number of small villages, containing from fifty to one hundred families, each governed by a chief, who was chosen for his wisdom and his deeds in arms. These petty states were continually at war with each other, making slaves of their unfortunate prisoners--the mountains were then, as now, inhabited by the negro race, common to many of the islands in the eastern archipelago. These different races of people, with the exception of about ten thousand, still form the population of the island. [Sidenote: CAVITÉ--PASIG.]