498 LECTURK XU. 



in Britain may be easily recognised. Of those which never rise above our 

 horizon, there are several of the first magnitude ; Canopus, in the ship Argo, 

 and Achernar, in the river Eridanus, are the most brilliant of them; the feet of 

 the centaur, and the crosier are the next; and according to Humboldt's 

 observations, perhaps some others may require to be admitted into the 

 same class. (Plate XXXVI, XXXVII.) 



