Note 40 — Chapter I
Reading edition
Bullialdus, De Nebulosâ Stellâ in Cingulo Andromedæ (1667); see also G. P. Bond, Mém. Am. Ac., vol. iii., p. 75, Holden's Monograph on the Orion Nebula, Washington Observations, vol. xxv., 1878 (pub. 1882), and Lady Huggins's drawing, Atlas of Spectra, p. 119.