ed by Captain Noble, iu the presence of most of the auditory who had been present at the delivery of the address. The engravings presented herewith illustrate safety appli- The object of the instrument, which was called a chrono- ances, by the use of which, it would seem, much of accident scope,… … equal, and that the pressure of te fast-burning powder act- of 15-in. cylinders with 24-in. stroke. The tractive power Figs. 1,2, and 3, represent a water alarm, the novelty ot ing on the gun was about doubb that of slow-burning pow- will thus amount to 257°14 Ibs. for each pound of effective which…
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