Alger P.R. The groundwork of practical naval gunnery or exterior ballistics

N.-Y.: The United States Naval Institute, 1915. — 364 p.The groundwork of practical naval gunnery; a study of the principles and practice of exterior ballistics, as applied to naval gunnery, and of the computation and use of ballistic and range tables.General and Approximate Deductions.
Practical Methods.
The Variation of the Trajectory from a Plane Curve.
Range Tables; Their Computation and Use.
The Calibration of Single Guns and of a Ship's Battery.
The Accuracy and Probability of Gunfire and the Mean Errors of Guns.