Navigation improv'd: or, The art of rowing ships ... with a more easy ... and steady motion, than oars can. Also a description of the engine that performs it; and the author's answer to all Mr. Dummer's objections that have been made against it.
Savery, Thomas.
[S.l. : privately printed,
1880]
A reprint of the edition of 1698.
No. 7. of 70 copies printed.