and immersing it in dilute sulphuric acid or a solution of alum for about fifteen minutes. It must be thoroughly washed before being dried. H. R. H. of N. YAll explosions of kerosene lamps are due to some of the fluid becoming vapor and mixing with several vol The benzine so called of petroleum is the lightest product of the crude material. It can easily be detected by the mode described on on the subject of petroleum explosions. Rejected Applications. jected cases on reasonable terms. The close proximity of our Wash ington Agency to the Patent Office affords us rare opportunities for the
and immersing it in dilute sulphuric acid or a solution of alum for about fifteen minutes. It must be thoroughly washed before being dried. H. R. H. of N. YAll explosions of kerosene lamps are due to some of the fluid becoming vapor and mixing with several vol The benzine so called of petroleum is the lightest product of the crude material. It can easily be detected by the mode described on on the subject of petroleum explosions. Rejected Applications. jected cases on reasonable terms. The close proximity of our Wash ington Agency to the Patent Office affords us rare opportunities for the, scientific american, 1862-11-08
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