No. 18. "Box No. 48a," Gypsum from Sharm Yaharr. Partly semi-transparent and granular, and partly dull white and opaque. It was found to be hydrated sulphate of lime, or gypsum, with carbonate of lime, and some sand, magnesia, and chloride of sodium. No. 19 "Box No. 35," Dust and stones from Sharma, yielded no results. Section 2. Examination of the mineral specimens contained in a box sent from Egypt. As the specimens were unlabelled, they were marked A, B, C, D, E, F, G, H, and I, respectively. No. 21. A. "Copper ore." A fair average specimen was prepared for examination from the several lumps of ore and marked a. a. It was submitted to analysis, and found to contain carbonates of lime and magnesia; silica, alumina, and oxides of iron; and of-- Copper (metallic) . . . .5.72 per cent. b. A portion of the copper mineral, from which the rock or vein-stuff had been detached as far as practicable, was found to consist of impure hydrated silicate of copper (bluish-green chrysocolla) and carbonate of copper. It was assayed and found to contain of-- Copper (metallic) . . . .23.14 per cent. No. 22. "B." A lump of soft, ochrey red-brown ironstone, coated with a thin layer of greyish white substance. A fair average sample, inclusive of this external layer, was prepared for examination, and was found to consist of– Peroxide of iron (per cent. ) . . .81.14 Water . . . . . . . . . . . . . . 11.50 Silica. . . . . . . . . . . . . . . 3.07 Sulphuric acid, lime, magnesia, alumina 4.29 _____ 100.00 The peroxide of iron contains 56.8 per cent. of metallic iron. The greyish white substance was found to consist of silica, alumina, sulphate of lime, and a little oxide of iron and magnesia. No. 23. "C." Lump of red ironstone associated with sand and earthy substances, containing Peroxide of iron (per cent.). . . 68.09 Water of iron (per cent.) . . . . . 1.93 Silica and sand . . . . . . . . . .18.17 Lime, magnesia (in small quantity), alumina, carbonic acid, sulphuric acid (traces) .11.81 ______ 100.00 The peroxide of iron contains 47.66 of metallic iron. No. 24. "D." Lump of white quartz said to contain visible gold. I did not observe any, but found a few minute specks of pyrites, and partially resembling mica. No. 25. Lump of quartz associated with red-brown oxide of iron. It yielded no results. No. 26. Lump of rock in which the "turquoise" occurs. There was a thin layer of greenish blue turquoise mineral on one surface, and minute seams of a similar substance throughout the specimen.