TY  - JOUR
T1  - Contributions to Terrestrial Magnetism. No. XV
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 167
SP  - 461
EP  - v
PY  - 1877/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1877.0013
M3  - doi:10.1098/rstl.1877.0013
AU  - Sabine, E.
ER  -