TY  - JOUR
T1  - Further Observations on the Spectra of Some of the Nebulae, with a Mode of Determining the Brightness of These Bodies
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 156
SP  - 381
EP  - 397
PY  - 1866/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1866.0017
M3  - doi:10.1098/rstl.1866.0017
AU  - Huggins, W.
ER  -