TY  - JOUR
T1  - On the Relation between the Diurnal Range of Magnetic Declination and Horizontal Force and the Period of Solar Spot Frequency
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 63
SP  - 64
EP  - 78
PY  - 1898/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1898.0013
M3  - doi:10.1098/rspl.1898.0013
AU  - Ellis, W.
ER  -