PT  - JOURNAL ARTICLE
AU  - Frank H. Bigelow
TI  - Note on causes of the variations of the magnetic needle
AID  - 10.2475/ajs.s3-42.249.253
DP  - 1891 Sep 01
TA  - American Journal of Science
PG  - 253--256
VI  - s3-42
IP  - 249
4099  - http://www.ajsonline.org/content/s3-42/249/253.short
4100  - http://www.ajsonline.org/content/s3-42/249/253.full
SO  - Am J Sci1891 Sep 01; s3-42