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.""