TY  - JOUR
T1  - On the Annual Variation of the Magnetic Declination, at Different Periods of the Day. 
JF  - Abstracts of the Papers Communicated to the Royal Society of London (1843-1854)
VL  - 6
SP  - 73
EP  - 74
PY  - 1850/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1850.0026
M3  - doi:10.1098/rspl.1850.0026
AU  - Sabine, L.
ER  -