Editorial note — THE CHURCH AND THE EXPERIMENTAL METHOD.
Reading edition
[Footnote 32: The letter of Petrus Peregrinus on the Magnet, A. D. 1269, translated by Bro. Arnold, M. Sc, with an Introductory Note by Bro. Potamian, N.Y., 1904.]
Reading edition
[Footnote 32: The letter of Petrus Peregrinus on the Magnet, A. D. 1269, translated by Bro. Arnold, M. Sc, with an Introductory Note by Bro. Potamian, N.Y., 1904.]