Vol. s3-42, Issue 249, 1891September 01, 1891 EDT
Note on Causes of the Variations of the Magnetic Needle
Note on Causes of the Variations of the Magnetic Needle
Frank H. Bigelow,
Bigelow, F. H. (1891). Note on causes of the variations of the magnetic needle. American Journal of Science, s3-42(249), 253–256. https://doi.org/10.2475/ajs.s3-42.249.253