OCR Text |
Show I'reeiou Clone Artificially Made. Science is constantly demonstrating its ability to duplicate the works ol nature. Artificial diamonds are no novelty, nov-elty, and now a c'.iple of French chemists chem-ists hwe succeeded in making rubies !ara miou;;"a to luottnt, Tho crystals first produced three years ago were very uniall, and the problem since solved hag been that of increasing their size. Instead In-stead of using ;oor alumina as formerly, alumina alkalinized by potassium carbonate carbon-ate is employed. This addition of an aitt is nop.".. . alkali does not. alter the purity of the crystals crys-tals obtained, while it facilitates their formation. In the original experiments the operation was completed in twenty-four twenty-four hours, but tho reaction ia now extended ex-tended ever several mouths, with the ro- stilt of obtaining much larger crystals. As much as seven pounds weight of mbies is said to have been obtained at a single operation. |