On the retrograde variation of the needle
By: by Colonel Beaufoy ; in a letter to Dr. Brewster.
Series: Landmarks of science II
Publisher: Printed for A. Constable
Published: 1820
Place of publication: Edinburgh
Language: eng
Format: Microform
Number of pages: 181
Subjects: Magnetic declination.; Compass.
Notes: Includes bibliographical references.

Microfiche. New York, N.Y. Readex Microprint Corporation, [1985?] (Landmarks II)

In The Edinburgh philosophical journal, v. 3 (1820), p. 179-181.