TY  - JOUR
T1  - Magnetical Observations in the Britannia and Conway Tubular Iron Bridges. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 21
SP  - 85
EP  - 86
PY  - 1872/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1872.0017
M3  - doi:10.1098/rspl.1872.0017
AU  - Airy, G.
ER  -