TY  - JOUR
T1  - Magnetic Survey of the East of France in 1869. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 20
SP  - 39
EP  - 41
PY  - 1871/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1871.0012
M3  - doi:10.1098/rspl.1871.0012
AU  - Perry, S.
AU  - Sidgreaves, W.
ER  -