Venus, distance, brilliancy, rotation, 

 transits, spots, mountains of, 473. 



Vespucci searches for a south polar 

 star, 315; his mention of the 

 Magellanic Clouds, 339. 



Vesta, discovery of, 421 ; elements, 

 508. 



Victoria, discovery of, 421; ele- 

 ments, 508. 



Virgo, nebulous region of, 312. 



Volcanos of the Moon, 497. 



Vulpes, nebula in, 333. 



Week, or seven-day period, early 



diffused among the Semitic na- 

 tions, 412; the Peruvian, an 

 error, 418. 



White Ox, the large Magellanic 

 Cloud so called by the Arabians, 

 294, 336. 



Wilson, on solar spots, 369. 



Wurm, his correction of Bode's law 

 of planetary distance, 444. 



Zodiacal light, early speculations on, 

 309; later opinions, 562; obser- 

 vations by the author and others, 

 563. 



