Milton, Conn. Published by the Author, 1890. 1st Printing. 8 pp. 5-7/8" x 3-1/2". Printed self-wrappers. Stitched into a custom brown paper wallet-style folder with hand-inked titling to one side. Age-toning & signs of use to pamphlet. First & last leaf detached. Prior owner pencil signature on the copyright page ["James M. Kane / Doylestown / Pennsylvania"]. A Good copy of this rare survivor. Item #43187
The booklet attempts to explain the physics behind not just a regular curve ball, but a zig-zag or compound curve ball. The author explains at length the techniques and rotational dynamics of throwing a ball so that it not only spins around its axis, but also rotates around the poles, to acheive a tricky wobbling pitch... "in order to produce a compound curve the direction of the motion of the rotation bust be reversed or changed." I know of no pitcher today who employs such a pitch.
OCLC records just two institutional holdings of this work [Baseball HOF; BYU].