The oil-man's vade mecum; or, useful assistant. Shewing, ... the value of a tun of fish and seed oil, at any price per gallon; and the weight and value of any number of gallons, ... To which is added an appendix, ... By R.W. Whitton, ...
Whitton, R. W.
London : printed by M. Ritchie, for the author, and sold by H.D. Symonds; F. and C. Rivington,
1799.
To prevent pirating, "the author has thought it necessary to subscribe his name, in his own handwriting, to every book".
With a list of subscribers.
ESTC