Nebulac,
Herschel, Sir John Frederick William, w4E 170.7 A general catalogue of nebulae and clusters of stars,
arranged in order of right ascension and reduced to the common epoch 1860, (With precessions com- puted for the epoch 1880.) From the Philosoph= ical transactions, Part 1, 1864, London: pr. by Taylor and Francis, 1864, +137 pp. 4°,