A hand-book on silex, embraced in three practical treatises: I. On soluble glass, and all its applications in the arts. II. On glass making, in all its details. III. A guide for soap making, the manufacture of all soaps and their manipulations... (1871)
Feuchtwanger, Lewis, 1805-1876 · New York : L. & J. W. Feuchtwanger · leaf 30
22 SILEX, OE SILICA. blest acid at common temperatures, but by a high beat can expel all volatile acids. Quartz is found in nature crystalized in a great variety of forms, the rhombohedral prevailing, and for the most part hemiliedral to the rhombohedron, or tetrahedral to the hexagonal prism. The… … i i The cleavage is very indistinct, sometimes efiected by plunging a heated crystal in cold water. The crystals are either very short or very much elongated, sometimes fine acicular usually implanted by one ex- tremity of the prism, occasionally twisted or bent. The prismatic faces commonly…
Glass manufacture · Soap · Soluble glass
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
