TY  - JOUR
T1  - Observations Tending to Investigate the Nature of the Sun, in Order to Find the Causes or Symptoms of Its Variable Emission of Light and Heat; With Remarks on the Use That May Possibly Be Drawn from Solar Observations
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 91
SP  - 265
EP  - 318
PY  - 1801/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1801.0015
M3  - doi:10.1098/rstl.1801.0015
AU  - Herschel, W.
ER  -