Electro - Ballistic Machines and the Schultz Chronoscope

New York: D Van Nostrand, 1871. Second Revised Edition.. Original publisher's cloth.. A very good copy; backstrip expertly laid down.. 4to, [4], [5] - 48 pp. + four inserted engraved plates on heavy paper stock.

The development of rifled cannons and high speed projectiles produced a need for accurate determination of the performance of such weaponry. The ballistic pendulum in conjunction with ultra high speed time recording techniques are the subject of this monograph. The Navez, Siemens, de Brettes, and Benton systems are all examined. A most interesting monograph for devices recording the velocities of projectiles travelling at Mach speeds.