Jack Wallis Gift Note: See correspondence between Jack Wallis and curator about his gift. As a young man, Wallis was very impressed by the writings of John Cowper Powys. He wrote initially to Llewelyn in 1932 asking him what he might send to JCP as a thank you. Llewelyn suggested a bust of Rousseau. Gradually a friendship evolved and Jack Wallis compiled an anthology of Llewelyn's ‘thoughts' which was published by the Golden Cockerel Press in 1937 as The Book of Days.