Note 257 — Chapter V
Reading edition
Am. Journ. of Science, vol. i. (2nd series), p. 293. Prof. Hubbard's calculations indicated a probability that the definitive separation of the two nuclei occurred as early as September 30, 1884. Astronomical Journal (Gould's), vol. iv., p. 5. See also, on the subject of this comet, W. T. Lynn, Intellectual Observer, vol. xi., p. 208; E. Ledger, Observatory, August, 1883, p. 244; and H. A. Newton, Am. Journ. of Science, vol. xxxi., p. 81, February, 1886.