Account of the discovery of a sixth and seventh satellite of the planet Saturn; with remarks on the construction of its ring, its atmosphere, its rotation on an axis, and its spheroidical figure. By William Herschel, ... From the Philosophical 
Herschel, William,Sir,1738-1822.
[London,
1790]
Drop-head title.
Reprinted from the Philosophical transactions of the Royal Society of London, v.80.
Reproduction of original from the Harvard University Houghton Library.
ESTC