A Biographical Memoir of Samuel Hartlib, Milton's Familiar Friend; With Bibliographical Notices of Works Published by Him; and a Reprint of His Pamphlet, Entitled "An Invention of Engines of Motion."

A Biographical Memoir of Samuel Hartlib, Milton's Familiar Friend; With Bibliographical Notices of Works Published by Him; and a Reprint of His Pamphlet, Entitled "An Invention of Engines of Motion."