302 SEMINAL VERMICULI. Us 



CHAP. II. 



THE PRECEDING OBSERVATIONS COMPARED WITH 

 THOSE OF LEEUWENHOECK. — CONFUTATION OP 

 SOME OPINIONS CONCERNING THE NATURE OF 

 SEMINAL VERMICULI. 



After this courfe of obfervations on the femi- 

 nal fluid of man and different animals, I determin- 

 ed to read and confider what Leeuwenhoeck and 

 Buffon had written, two authors who, more than 

 all others, had made this fubjeft their particular 

 ftudy. Several years had elapfed fmce I read their 

 difcoveries on feminal vermiculi, fo that only a 

 general idea of their opinion remained. I even 

 wiflied to profcribe that remembrance, and in 

 thefe refearches to have my mind as a pure tab- 

 let, the more fit to receive the real impreffions 

 of what my eyes might behold without any pre- 

 pofleffion for the obfervations of others. 



I fhall begin with Leeuwenhoeck ; and that 

 the reader may have before him the real fenti- 

 ments of this naturalift, and that he may com- 

 pare' 



