Philadelphia: Printed for the Author, by John H. Oswald, First edition, 1805. 34 pp. Disbound. In modern red cloth folding case, spine lettered in gilt. Ex-lib., with unobtrusive institutional inkstamp on p.  and purchase record at gutter of p. 34. Contemporary numerical inscription in upper margin of title page. Some foxing. Very good. A doctoral thesis on the pharmaceutical uses of hops, containing results of experiments and arguing for the use of hops over opium in the treatment of sleeplessness. Rare, with OCLC recording one copy, at the University of Pennsylvania. Shaw & Shoemaker 8096. Austin 302. Very Good.