Note 1167 — Chapter XXXIX · VARIABLE NEBULÆ.
Reading edition
Monthly Notices, vol. xxxviii. p. 104; Astr. Nach. No. 2293; V. J. S. Astr. Ges. Jahrgang xiv. p. 167.
Reading edition
Monthly Notices, vol. xxxviii. p. 104; Astr. Nach. No. 2293; V. J. S. Astr. Ges. Jahrgang xiv. p. 167.