TY  - JOUR
T1  - Researches in Physical Astronomy
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 121
SP  - 231
EP  - 282
PY  - 1831/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1831.0016
M3  - doi:10.1098/rstl.1831.0016
AU  - Lubbock, J.
ER  -