... much of it, to judge from the works that the Ygolotes had, and those that we were making, as it seemed an ore of fairly good appearance. Compounding the assay of the said four quintals with salt and magistral, [60] the compound was washed on the second of May following, and a grain of gold of one-half real weight obtained. Two onzas of quicksilver ... — The Philippine Islands, 1493-1898, Volume XX, 1621-1624 • Various