I. Of the aerial acid. Of the analysis of waters. On the waters of Upsal. On the acidulous spring in the parish of Denmark. Of sea-water. Of the artificial preparation of cold medicated waters. Of the artificial preparation of hot medicated waters. Of the acid of sugar. Of the preparation of alum. Of antimoniated tartar. Of magnesia -- II. Of the forms of crystals, particularly those of the spathaceous kind. Of siliceous earth. Of the hydrophanous stone. Of the earth of gems. The earth of the turmalin stone. Of the fulminating calx of gold. Of platina. Of the white ores of iron. Of nickel. Of arsenic. Of the ores of zinc. Of metallic precipitates. Of the art of assaying in the humid way. Of the blow-pipe; and its use in the examination of bodies, particularly minerals -- III. Of the origin of chemistry. History of chemistry during the middle age. Analysis of lithomarge. Of asbestine earth. Thoughts on a natural system of fossils. Of the combination of mercury with the marine acid. Process for burning bricks. Of the acidulated waters of Medoi. Of the medicinal springs of Lokarne. Of cobalt, nickel, platina, and manganese

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