OCR Text |
Show Petroleum Substitute. One Spanish substitute for petroleum for miners' lamps contains 77. o pel-cent pel-cent of t!ti degree per cent alcohol and 22.5 per cent of benzol. This lamp fnel seems to have met with some approval, ap-proval, but an objection is Its low elli-ciency, elli-ciency, the lamp using it developing only 77 per cent of the illuminating power of the standard petroleum lamp. A new mixture designed to yield this brilliancy is made up of (12 per cent by volume of the alcohol, 16 of benzol, 7.5 of rectified turpentine and 14.5 of fusel oil. |