Sharrock
was the Arch-deacon of Winchester Cathedral. His book
The History of the Propagation and Improvement of
Vegetables by the Concurrence of Art and Nature
(1660) presents interesting historical material of the
time. It went through three editions.
Additional information about Robert
Sharrock may be found on the Internet.
(Caution: Some links may not directly pertain to this
person. The search engine did not take Professor
Howlett's course.)