378 INDEX. 



Thunder-cloud, fingular phenomenon feen in a, 4T. 

 Travels, Mr. Hamilton's intended, a88. 

 Trep inning injlrument, Mr. Rodman's newly invented, 207. 

 Tungjitn, a notice refpeAing, 86. 



Ultramarine, the colouring principle of, 278. 

 Uranite difcovered in France, 185. 

 Urceola elajiua, defcription of the, 14, 154. 

 Urie, a new fubftance found In urine, 87. 

 Urinary concretions, experiments on, 86. 



l^accine inoculation, obfervations on, 49. 



Valifneria, on the fecundation of the, 309. 



Vafour, on the quantity of caloric contained in, 244. 



f^egetation, experiments on, 283, 281;. 



Folcanoes, attempt to explain the phenomena of, 27). 



Wagftaffe's preparation of feed-corn, icu 



IVind, meteorological axioms concerning the, 149. 



irool. Spanifti flieep thrive in cold climates, 36;^. 



IVorms divided into two families, 304. 



IVurmb's defcription of the ifland of Borneo, 193. 



Wurmb's defcription of the ifland of Celebes, or Macaflar, 25 



Tejfo, not a large country, but a group of iflands, 89. 

 Tejly on the efficacy of, in certain difeafeF, 56. 



Zoology, notices refpefting, 89, 277. 



END OF THE SIXTH VOLUME, 



Printed by Davis, Wilks, and Taylor, Chancery-Lane. 



