Note 542 — Chapter XVII · SPECTROSCOPIC BINARIES.
Reading edition
Harvard Annals, vol. xxvi. p. xviii.; Harvard Circular, No. 11; Astr. Nach. No. 3017; Monthly Notices, vol. l. p. 297.
Reading edition
Harvard Annals, vol. xxvi. p. xviii.; Harvard Circular, No. 11; Astr. Nach. No. 3017; Monthly Notices, vol. l. p. 297.