INDEX 



TO THE 



THIRD VOLUME. 



-^GRIPPA, account of his occult philofophy, 42. 

 Air-bubbles, experiments with, 120. 

 Alchemijis, account of, 447. 

 Allegiance, the origin of, 2. 



" the juft limits of defined, 5. 



Amulets, effefts afcribed to, 72. 



Anglezark, mine of, containing Aerated Barytas, 600. 



Apparitions, foundation of the theory of, 75. 



Attrailion and Repuljim, letter upon, byMr. Bennet, 1 16. 



Authority, fupreme, diftinguiflicd from arbitrary power, 13. 



B. 

 Banks, Mr. on the floating of cork balls, 178. 

 Barritt, Mr. on Druidical Remains, 292. 

 Barytes Aerated, account of a mine containing, by Mr. J. Watt, 



jun. 598. 



■ defcription of, 607. 



■' fome remarkable properties of, quoted from 



Dr. Leigh, 610. 

 ' fome experiments with, 612. 



Ba/es, 



