orres-ponding effect is produced in the im-age, whicl gradually weakens up toits border j by insensible gradationsuntil it disappears altogether. Practi- Scientiiic American cally in spite of the softness of the details and theoutlines, the impressions produced by vapor are farfrom consisting of… … Locomotive Derrick Crane With Two Booms. Negative images have also been obtained by act-ing with ammoniacal vapors upon cloths impregnatedwith a mixture of powdered aloes and olive oil; it isknown that aloes contains a principle which turnsbrown and is oxidized under the influence of alkaliesin…
Patents · Apparatus · Gas · Oil · Design patents · Scientific American · Machine work · Liquid fuel · Gas engine · Fuel oil · Design patent · Mont pelee · Oil fields · Texas oil
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
