TY  - JOUR
T1  - Results of Seven Years Observations of the Dip and Horizontal Force at Stonyhurst College Observatory, from April 1863 to March 1870. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 19
SP  - 368
EP  - 370
PY  - 1870/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1870.0053
M3  - doi:10.1098/rspl.1870.0053
AU  - Perry, S.
ER  -