Barlow, P. (1824). An essay on magnetic attractions, and on the laws of terrestrial and electro magnetism: Comprising a popular course of curious and interesting experiments on the latter subject, and an easy experimental method of correcting the local attraction of vessels on the compass in all parts of the world : with an appendix containing the results of experiments made on ship board, from latitude 61S̊. to latitude 80N̊ (2nd ed., much enl. and improved.). Printed for J. Mawman.

Barlow, Peter. An Essay on Magnetic Attractions, and on the Laws of Terrestrial and Electro Magnetism: Comprising a Popular Course of Curious and Interesting Experiments on the Latter Subject, and an Easy Experimental Method of Correcting the Local Attraction of Vessels on the Compass in All Parts of the World : With an Appendix Containing the Results of Experiments Made on Ship Board, from Latitude 61S̊. to Latitude 80N̊. 2nd ed., much enl. and improved. Printed for J. Mawman, 1824.