588 



INDEX. 



Variable stars, recent observations 

 ot; 290. 



Sir William Ilerschel's obser- 

 vations of, 269. 

 Verbena Arizonica, 95. 

 Verbenaceaj, 95. 

 Verbesina, L., 11. 



alata, L., 14. 



ancistrophora, 14. 



Capitancja, Nees, 13. 



Coahuilensis, 14. 



Coulteri, 13. 



crocata, Less., DC, 14. 



encelioides, Benth. & Hook., 14. 



Fraseri, Hemsl., 14. 



helianthoides, Michx., 12. 



heteropliylla, 12. 



hypoleuca. Gray, 13. 



longifolia, 12. 



neriifolia, Hemsley, 13. 



nudicaulis, 12. 



occidentalis, Walt., 11. 



ovata, 13. 



ovatifolia, Gray, 15. 



Palmeri, 11. 



stricta, 13. 



tetraptera, 13. 



venosa, E. L. Greene, 13. 



Virginica, L., 11. 



Warei, 12. 



Wrightii, 12. 

 Verbesinaria, DC, 11. 

 Viguiera blepharolepis, 5. 



canescens, DC, 6. 



decurrens, 5. 



Ghiesbreghtii, 6. 



heliantiioides, HBK., G. 



Peruviana, Gray, 6. 



Poeppigii, 6. 



sessilifolia, DC, 6. 



Volume, coefficients of, table of, 



437. 

 Volumes, table of, 438. 



W. 



Weber, evening observations, 195. 

 Wurtz, Charles Adolphe, notice of, 



568. 

 Wyethia longicaulis, 4. 



X. 



Ximinesia, 14. 



Zenith, longitude of, for stations in 

 north latitude, 179. 

 for stations in south latitude, 

 182. 

 Zexmenia aurea, 10. 



brevifolia, Gray, 10. 

 crocea. Gray, 11. 

 fasciculata, Schultz Bip., 11. 

 helianthoides. Gray, 11. 

 hi.'^pida, 10. 

 Zodiacal bands. 164. 

 Zodiacal light, tlie, 146. 

 brightness of the, 154. 

 distinctness of the lower edge 



of the, 159. 

 meteoric theory of the, 323. 

 INlilky Way, standard of com- 

 parison for the, 156. 

 place of the, with respect to 



the ecliptic, 149. 

 references, 147. 

 relative intensity of the, 155. 



University Press: John Wilson & Son, Cambridge. 



