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a hut on the northern slope of the Manacagan, which the owner, on seeing us approach, had voluntarily quitted, and with his wife and child sought other lodgings. The customs of the country require this when the accommodation does not suffice for both parties; and payment for the same is neither demanded nor, except very rarely, tendered. [Up the Manacagan.] About six o'clock on the following morning we started; and about half-past six climbed, by a pleasant path through the forest, to the ridge of the Manacagan, which consists of trachytic hornblende; and about seven o'clock we crossed two small rivers flowing north-west, and then, by a curve, reached the coast at Dulag. From the ridge we caught sight, towards the south, of the great white heaps of debris of the mountain Danan glimmering through the trees. About nine o'clock we came through the thickly-wooded crater of the Kasiboi, and, further south, to some sheds in which the sulphur is smelted. [Sulphur.] The raw material obtained from the solfatara is bought in three classes: firstly, sulphur already melted to crusts; secondly, sublimated, which contains much condensed water in its interstices; and thirdly, in the clay, which is divided into the more or less rich, from which the greatest quantity is obtained. Coconut oil, which is thrown into flat iron pans holding six arrobas, is added to the sulphurous clay, in the proportion of six quarts to four arrobas, and it is melted and continually stirred. The clay which floats on the surface, now freed from the sulphur, being skimmed off, fresh sulphurous clay is thrown into the cauldron, and so on. In two or three hours six arrobas of sulphur, on an average, may be obtained in this manner from twenty-four arrobas of sulphurous clay, and, poured into wooden chests, it is moulded into blocks of about four arrobas. Half the oil employed is recovered by throwing the clay which has been saturated with it into a frame formed by two narrow bamboo hurdles, placed at a sharp angle. The oil drops into a sloping gutter of bamboo which is placed underneath, and from that flows into a pot. The price of the sulphur at Manila varies between [Prices.] $1.25 and $4.50 per picul. I saw the frames, full of clay, from which the oil exuded; but the operation itself I did not, unfortunately, then witness, and I cannot explain in what manner the oil is added. From some experiments made on a small scale, therefore under essentially differen
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