A description of several instruments for measuring a ship's way through the water By R. H Gower, ... With an account of his patent perpetual log, ...
Gower, R. H.(Richard Hall),1767-1833.
London : printed for the author; and sold by Gilbert and Wright; Sewell; Elmsley; and T. and J. Egerton,
1792.
Letters patent no.1895 of 1792.
With a half-title.
ESTC