Hygroscopic water 3.73 Volatile constituents 45.49 Coke Fixed carbon 48.20 Ash Silica 12 Aluminic 2.46 Ferric, calcic Magnesic Chloric Sulphuric acids, etc. 100.00 Coke = 50.79. Equivalent calories 5203.44 Ash = 2.58. Absolute calorific effect, centesimal 64.41 Sulphur per 100 of lignite 0.1633 Iron calculated in metallic state 1.2173 Lead reduced by 1 gramme of combustible (mean) by Berthier's assay grammes 21.90 Various Minerals. Lead.--Galena is found in Tayabas and in Camarines Norte; in the latter province there is found chromate of lead with ferruginous quartz. This ore is often found mixed with iron or copper pyrites, and sometimes with blende. I have seen samples of galena from Cebú which was said to be auriferous, but I have never heard that any of these ores have been worked anywhere in the islands. If it should be found profitable to smelt the gold-bearing ores, as is so splendidly done at Denver, Col., the galena will be necessary to the success of the process. Red Lead is found in Camarines Norte and other places. Graphite.--In 1891 some pieces of this valuable mineral were shown to me by a native, who said he had found the ore in Mindoro, but he would not say from what locality. Quicksilver.--I have seen small bottles of this handed round by native disciples of Ananias. But I have never seen a bit of cinnabar or other ore of mercury, and I shall not believe there is any of this metal in the Philippines until I see the ore in situ, or have good testimony to that effect. Sulphur abounds; there are several places where it can be obtained in large quantities near the volcanoes. Asbestos.--This curious mineral would not strike a native as being of value. All I can say about it is that at the Madrid Exhibition of 1887 a specimen of this substance was shown by the Civil Governor of Ilocos Norte as having been found in that province. Yellow Ochre is found in Batangas, Camarines, Albay, Leyte and Antique, amongst other places. Kaolín is found in Manila, Batangas and Camarines Sur, and probably in many other places. Marble of a yellowish colour has been quarried at Montalban. I have used some of it, but found it full of faults, and not very satisfactory. Plastic Clays for pottery and for making bricks and tiles abound. Mineral Waters.--As might be expected in a volcanic region, hot springs and mineral waters of very varied constituents abound. I do not think that the analyses of these would interest the general reader.