NOTES. Ixxxiii 



the present work to attempt to depict the state of knowledge at a determinate 

 epoch. 



(^ p. 229. Sir John Herschel says, in p. 134 of his Cape Observations, 

 " There are between 300 and 400 nebulae of Sir William Herschel's Catalogue 

 still unobserved by me, for the most part very faint objects." .... 



( 394 ) p. 229. Cape Observ. 7. (Compare Dunlop's Catalogue of Nebulae 

 and Clusters of the Southern Hemisphere, in the Phil. Trans, for 1828, p. 

 114146.) 



( 395 ) p. 230. Kosmos, Bd. iii. S. 297 (Engl. edit. p. 206207.) 



( 396 ) p. 230. Cape Observ. 105107. 



( 397 ) p. 231. In Kosmos, Bd. iii. S. 181, line 6 from below, by an error 

 of the press, the words South Pole and North Pole have been interchanged 

 [this was rectified in the English edition, p. 124, line 8 from top]. 



( 39S ) p. 231. "In this region of ' Virgo, occupying about one-eighth of 

 the whole surface of the sphere, one-third of the entire nebulous contents of 

 the heavens are congregated" (Outlines, p. 596). 



( 399 ) p. 231. On this "barren region" see Cape Observ. 101, p. 135. 



C 100 ) p. 232. I found these numerical data on the summing up of the 

 numbers furnished by the projection of the northern heavens, in the Cape 

 Observ. PI. xi. 



C 401 ) p. 233. Humboldt, Examen crit. de 1'Hist. de la Geographic, T. iv. 

 p. 319. In the long series of voyages undertaken under the influence of the 

 Infante Don Henrique by the Portuguese along the West coast of Africa 

 towards the Equator, the Venetian Cadamosto (whose proper name was Alvise 

 da Ca da Mosto), after joining Antoniotto Usodimare at the mouth of the 

 Senegal in 1454, was the first who occupied his attention with the search 

 after a southern Pole-star. "As," said he, " I still see the northern Pole- 

 star" (he was in about 13 North latitude), I cannot see the south one itself; 

 but the constellation which I see farthest towards the South is the Carro del 

 Ostro (the Southern Wain or Car)." (Aloysii Cadam. Navig. cap. 43, p. 32 ; 

 Ramusio, Delle Navigazioni et Viaggi, Vol. i. p. 107). May he have formed 

 for himself a car or wain from some large stars of the constellation of the Ship ? 

 The idea that each of the two Poles had its car, appears to have been so pre- 

 valent at that time, that in the Itinerarium Portugallense, 1508, fol. 23, b, 

 and in Grynaus, Novus Orbis, 1532, p. 58, there is a constellation, quite 

 similar to the Little Bear, figured as having been seen by Cadamosto ; while 

 Ramusio (Navigation!, Vol. i. p. 107) and the new Collec9ao de Noticias para 

 a hist, e geogr. das Nacoes Ultramarinas (T. ii. Lisboa, 1812, p. 57, cap. 39) 



