Specification of John Graefer
Subtitle: preserving vegetable substances
Publisher: Great Seal Patent Office
Published: 1855
Place of publication: London
Language: eng
Subjects: Drying; Salt; Kale; Food Preservation; Scurvy; Prevention & control
Description: Patent for preserving "a vegetable of the Brassica kind, generally known by the name of green and brown borecole, scotch or other kale" with a salt solution and drying so it will keep for up to a year.
Notes: At head of title: A.D. 1780. No. 1275.

"John Graefer, of Mile End, in the parish of St. Dunstan, Stepney, botannic gardener".