Bulletin . A., Before firing /. Aftei firing. CONTACT MAKER USED AT ALTOFTS EXPERIMENTAL C. APPARATUS FOR IGNITING COAL DUST BY GAS FLAME, ALTOFTS EXPERIMENTAL by detachment of lever weight. invkstkjaTIONS at ROPEAB BTATIOK8. sealing wax. The outer end of the |>i|> at the head of the DOttie. The gases are afterwards withdrawn through a mercury pump for analysis. Thetime that the bottle remains open depends upon the distance that the small weight falls; this can be varied at will. The time at which the hot tie is opened to the gallery by the break-ing of the g
Bulletin . A., Before firing /. Aftei firing. CONTACT MAKER USED AT ALTOFTS EXPERIMENTAL C. APPARATUS FOR IGNITING COAL DUST BY GAS FLAME, ALTOFTS EXPERIMENTAL by detachment of lever weight. invkstkjaTIONS at ROPEAB BTATIOK8. sealing wax. The outer end of the |>i|> at the head of the DOttie. The gases are afterwards withdrawn through a mercury pump for analysis. Thetime that the bottle remains open depends upon the distance that the small weight falls; this can be varied at will. The time at which the hot tie is opened to the gallery by the break-ing of the glass hull) is determined by causing th
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
