iv INDEX. 



Vol. Fol. 

 FISH, the Author's opinion refpefting their longevity. . I. 70 

 an extraordinary quantity on the lea-coall, near 



Delft, accounted for by the Author I. 1'83 



a minute Ihell-fifli, adhering to the ftiells of other 



filh, minutely defcribed II. 339 



FLEA, minutely defcribed II. 33 



how to prevent its increafe II. 30 



FLY, its generation and rapid increafe II. 25 7 



two fpecies of a minute Fly defcribed II. 1 90, 19 1 



FROGS, their generation II. 22; 



G. 

 GALL Nut, an excrefcence on the leaf of the oak, the man- 

 ner of its prod udlion I. 137 



GNAT, the rting of the Gnat particularly defcribed II. 2-iQ 



its wing, and the feathers on it defcribed II. 254 



the brain of one II. 71 



GOUT, the calcareous fubllance formed in the limbs of 



gouty perfons examined II. ]S3 



its cure by Moxa, as practifed by the Chinefe . . II. 137 



GUNPOWDER, various obfervations by the Author on 



its nature and properties II. 1 5 1 



H. 



HAIR, Its formation 1.271,282 



HAIRS oa the feet of flies and crabs particularly examin- 

 ed and defcribed II. 71, 72 



HEART, the formation of it in feveral animals I. 258 



HERRING, various obfervations on this fifli II. 9 



HOPS defcribed, and wherein their virtue confills I. 207 



I- 



LIME Tree, the formation of this wood defcribed II. 5 



and other cements examined and defcribed II. 331 



