38o IND 



UTtderdoitin^s patent* 271 



f^acc'ination. On, 36, 60, 86, 

 143, 187, 236 

 Vegetation. Chemical researches 

 _on, 307 



Viper, Venom of, 91, 279 



Volcanoes. Eruptions of, 187 

 Voyage of dhcoiery, ^cO 



Voyage to the north-west coast 

 of America, 3, 106; for dis- 

 coveries, 105 



TVashing. Patent for, 272 



IVater-prcof cloth, 92 



Water-sfouls, 374 



E X. 



Wilicox^s patent, 171 



Windoiv glass. Antiquity bf, 



Wollasion on a new metal found 

 in platina, 168 



IVooL Patent for cleaning, 19 1 } 

 remarks on, 2r6 



I'u'olliu cJoib. Patent for strain- 

 ing, ?cc. 95 



Woulf's apparatus improved, 

 272 



II' riling. Patent for, 271 



IVriling quills. On, 214 



Zambeccari'szh\7i\ voyage, 85 

 Zoology. Discoveries in, 306 



tND OF THE TWENTIETH VOLUME, 



;?^^^S^?^' 



Prinlid by R. Taylur and Co.' Blue': ILne Coieit, Fktt Street, 



