Proposal of a method for measuring degrees of longitude upon parallels of the æquator. By J. Michell, B. D. F. R. S.

London : [s.n.], Printed in the Year 1767.

11,[1]p.,plate ; 40.

ESTC T125487

Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. (Eighteenth century collections online). Available via the World Wide Web. Access limited by licensing agreements.