London, W. Bulmer and Co., 1809. 4to. No wrappers as extracted from "Philosophical Transactions" 1809 - Part II. With titlepage to Part II. Pp. 221-231 a. 1 engraved plate. Clean and fine.
First printing of Cavendish's last paper.This paper relates to his astronomical interests and describes three improved methods of graduating astronomcal instruments.