[1376] Mr. J. Birmingham, in the Introduction to his Catalogue of Red Stars, adduced sundry instances of colour-change in a direction the opposite to that assumed by Zöllner to be the inevitable result of time. Trans. R. Irish Acad., vol. xxvi., p. 251. A learned discussion by Dr. T. J. J. See, moreover, enforces the belief that Sirius was absolutely red eighteen hundred years ago. Astr. and Astroph., vol. xi., p. 269.
[1377] Phil. Trans., vol. clxiv., p. 492.
[1378] Astr. Nach., No. 2,000.
[1379] Proc. Roy. Soc., vols. xvi., p. 31; xvii., p. 48.
[1380] Annalen der Physik, Bd. xx., p. 155.
[1381] Ibid., p. 153.
[1382] Knowledge, vol. xiv., p. 101.
[1383] Meteoritic Hypothesis, p. 380.
[1384] Phil. Trans., vol. cxci. A., p. 128; Spectra of Southern Stars, p. 3.
[1385] See the author's System of the Stars, p. 84.