en had been charged with compressed air at ujany two front disks were of common hard rubber, ^^ inch years ago in the columns of this journal, of the very thousand pounds pressure, and that when the stop- in thickness, while the third disk, which was placed simplest and most transparent kind: in… … brass tubing, mallet (his pur- TEST OF THE KEELY "VAPOEIC" GUN AT SANDY HOOK, SEPTEMBEE, 1884, of just the size pose being to delay the tap- and strength needless to say ping until after the discharge), It to match the strength of the steel reservoir, and corre- ing, yV oi an inch thick. The disks…
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