The Christian philosopher: a collection of the best discoveries in nature, with religious improvements. By Cotton Mather ...Mather, Cotton, 1663-1728.1721 [i.e. 1720]Bookplate of J. Griffith.Dedication signed: Tho. Bradbury.Professor Kittredge has shown that this was printed in 1720, even though the title page bears date 1721. cf. Holmes.text