HARTFORD STEAM BOILER INSPECTION & INSURANCE COMPANY.
W. B. FRANKLIN, V. PRES'T. J. M. ALLEN, PRES'T.
J. B. PIERCE, SEC'Y.
Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 195 / 213 题