( 7*3 ) 



INDEX. 



A 



APPARATUS of the lucernal microfcope, 79 ; of 

 Cuff's double, 82 ; of the improved compound, 87 ; of 

 Culpepefs, 91 ; of the opake folar, 98 ; common ditto, 102 ; 

 parts of defcribed, 120. 

 Adams's lucernal microfcope defcribed, 67 ; double and fingle 



microfcope ditto, 83. 

 Animalcula in infufions, how procured, 150 ; many forts defcri- 

 bed, 454 ; properties of, 455 ; Needham and Buffon's fyftem 

 concerning them confuted, 462. 

 Antennae of infe&s, their varieties defcribed, 175. 

 Aphis, or puceron, defcribed, 251. 

 Anguiltae, or eel-like animalcula, 510. 



B 



Butterfield, Mr. his method of making glafs globules, 9. 

 Bonnani, Philip, his compound microfcopes defcribed, 17. 

 Barker, Dr. Robert, his improvement on the compound micro- 

 fcope, 18. 

 Bark of trees defcribed, 660. 



4 S Botanical 



