TY  - JOUR
T1  - Observations of the Dipping Needle, Made at London, in the Beginning of the Year 1723. By Mr. George Graham, Watchmaker, F. R. S.
JF  - Philosophical Transactions (1683-1775)
VL  - 33
SP  - 332
EP  - 339
PY  - 1753/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1724.0062
M3  - doi:10.1098/rstl.1724.0062
AU  - Graham, G.
ER  -