Specification of John Ching
Subtitle: medicine for destroying worms
Publisher: Great Seal Printing Office
Published: 1856
Place of publication: London
Language: eng
Description: Patent for "a medicine for the destroying of worms, which may be administered without prejudice to the constitution of the patient".
Notes: At head of title: A.D. 1796. No. 2121.

Cover title.

"John Ching, of Launceton, in the county of Cornwall, chymist and apothecary."