77/1719 [Astronomy]. Herschel, J.F.W. Observations of Nebulae and Clusters of Stars, made at Slough, with a Twenty-feet Reflector, between the years 1825 and 1833. (London, n.publ., 1833), 359-505p., 8 engr. plates, without binding.

= Published in Philosophical Transactions of the Royal Society of London, Volume 123. Norman 174; DSB VI, p.323ff.