Mather, Cotton (1663-1728) The Christian Philosopher: a Collection of the Best Discoveries in Nature, with Religious Improvements. London: for Eman. Matthews, 1721.
Octavo, first edition, contemporary boards, detached, with an inscription inside the front board dated October, 1720, bolstering the argument that this book was printed in that year.
Cotton Mather writes as a scientist. "[Of spider eggs] their nidification is astonishing!" on drugs, "What admirable effects of opium well smegmatized!" and astronomy, "If our moon were bigger, or nearer the earth, or if we had more than one, we should be every now and then in hazard of being drowned."