The Heretic's Feast: A History of Vegetarianism (Hanover and London: University Press of New England, 1996), p. 16 https://books.google.it/books?id=rIjZo-cvifAC&pg=PA16.
Colin Spencer is an English writer and artist who has produced a prolific body of work in a wide variety of media since his first published short stories and drawings appeared in The London Magazine and Encounter when he was 22. His work includes novels, short stories, non-fiction , cookery books, stage and television plays, paintings and drawings, book and magazine illustrations. He has written and presented a television documentary on vandalism, appeared in numerous radio and television programmes and lectured on food history, literature and social issues. For fourteen years he wrote a regular food column for The Guardian. Wikipedia
The Heretic's Feast: A History of Vegetarianism (Hanover and London: University Press of New England, 1996), p. 16 https://books.google.it/books?id=rIjZo-cvifAC&pg=PA16.