Several travellers have stated that they sacrifice pigs when it thunders. As thunder-storms are very frequent and often of extraordinary violence in the Philippines, this custom would imply the possession of a large number of pigs on the part of the Negritos. Those of Mariveles and of the Zambales mountains do not appear to possess any domestic animals, except dogs, and they find it difficult to kill the wild pigs, active as they are. Consequently, I think this must apply to those Negrito tribes, such as the Balúgas and Dumágas, of whose condition I shall speak later. They are also said to offer up prayers to the rainbow. This offering can be made with greater ease than the sacrifice of a pig, but the frequency of rainbows at certain seasons will keep them pretty closely to their devotions. Ratzel, 'History of Mankind,' vol. i., p. 471, says: Among the Negritos of Luzon, a fabulous beast with a horse's head which lives in trees is venerated under the name of Balendik. And on p. 478: When killing an animal, the Negritos fling a piece heavenwards crying out at the same time, "This is for thee." They show great respect for old age, and the British War Office might learn something from them for they are reported to tend with love and care every old man of warlike repute. Their language largely consists of curious clicks and grunts, and those of them who trade with the Christians usually learn enough of the local dialect to do the necessary bargaining. There are some varieties of the Negritos who are more or less mixed up with the Malays, but their origin is not clear. The Malay women are very unprejudiced, perhaps there are no women on earth more ready to form temporary or permanent alliances with foreigners: they do not disdain even the Chinamen. They perhaps do not like them, but they know that John Chinaman makes a good husband, provides liberally for his family, and does not expect his wife to do any hard work. By some writers the Malay women, notably the Visayas, are accused of unbounded sensuality (Anto. de Morga. Sucesos de Filipinas), but anyhow the Tagal women draw the line at Negritos, and will have nothing to do with them. Fray Gaspar de San Agustin however thought that the Visaya women would not be so particular. This being so, the hybrid races in Luzon must have sprung from the union of Remontados--that is to say, of Malays who took refuge in the hills either from a natural love for savage life, or as fugitives from justice--with the Negrito women. Amongst these varieties are the Balúgas, who live in the eastern cordillera of Nueva Écija, in north and south Ilocos, and in the mountains of Tayabas. Some of these people have advanced a step in civilisation, they build huts and do a little rude cultivation.