TY  - JOUR
T1  - Observations of the Transit of Mercury over the Disk of the Sun; To Which is Added, an Investigation of the Causes Which Often Prevent the Proper Action of Mirrors
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 93
SP  - 214
EP  - 232
PY  - 1803/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1803.0009
M3  - doi:10.1098/rstl.1803.0009
AU  - Herschel, W.
ER  -