Ixxviii NOTES. 



two individuals, both of a high ruddy or orange colour, though that of the 

 smaller is of a somewhat more somhre and brownish cast." Sir John Her- 

 schel, Cape Observations, p. 300. According to the valuable observations of 

 Captain Jacob, of the Bombay Engineers, in 18461848, the principal star 

 is estimated at the 1st magnitude, and the companion from the 2'5 to the 

 3rd magnitude. 



C 353 ) p. 210. Kosmos, Bd. iii. S. 235, 249 and 259, Eng. ed. pp. 155, 

 249, and note 274. 



( K4 ) p. 211. Struve iiber Doppelst. nach Dorpat. Beob. S. 33. 



( 3M ) p. 211. Same work, S. 36. 



r 356 ; p. 211. Madler, Astr. S. 517; John Herschel, Outlines, p. 568. 



C 357 ; p. 211. Compare Madler, Untersuch. iiber die Fixstern-Systeme, Th. 

 i. S. 225275, Th. ii. S. 235240; the same Author, in hi Astr. S. 541 ; 

 and John Herschel, Outlines, p. 573. 



( :i58 ) p. 215. Kosmos, Bd. i. S. 86 91 and 158 (English edition, p. 74 

 79 and 142) ; Bd. ii. S. 369 (English edit. p. 328) ; Bd. iii. S. 4751, 

 17&, 219, and 231 (English edit. p. 3741, 120, 136, and 150). 



(**) p. 215. Kosmos, Bd. iii. S. 267269 (Engl. edit. p. 182183). 



(S 60 ) p. 217. Kosmos, Bd. i. S. 87 (Engl. edit. p. 75). 



C 561 ) p. 218. Kosmos, Bd. iii. S. 99, 131, Anm. 62; 178 and 210, Aum. 

 71 : Engl. edit. p. 80, Note 151 ; p. 119, Note 237. 



( m ) p. 219. Before the expedition of Alvaro Becerra. The Portuguese 

 advanced in 1471 to the South of the Equator. See Humboldt, Examen 

 critique de 1'Hist. de la Geogr. du Nouveau Continent, T. i. p. 290292. 

 On the Eastern side of Africa, the commercial route through the Indian 

 Ocean from Ocelis on the Straits of Bab-el-Mandeb to the Entrepot of 

 Muzeris on the Malabar coast and to Ceylon, being favoured by the south- 

 west monsoon (Hippalus), was frequented under the Ptolemies (Kosmos, Bd. 

 ii. S. 203 and 433, Note 21 ; Engl. edit. p. 169, Note 261). On all these 

 routes the Magellanic clouds must have been seen, although they have not 

 been described. 



(s 63 ) p. 219. Sir John Herschel, Cape Observations, 132. 



(s 64 ) p. 219. Kosmos, Bd. ii. S. 357 and 509, Note 43. Galileo, who sought 

 to attribute the difference between the days of discovery (29 Dec. 1609, and 

 7 Jan. 1610) to the difference of calendars, in his wrath at what he terms 

 the " bugia del iinpostope eretico Guntzenhusano" goes so far as to declare 

 " che molto probabilmente il Eretico Simon Mario non ha osservato giammai 

 i Pianeti Medicei" (see Opere di Galileo Galilei, Padova, 1744, T. ii. p. 235 



