DIFFERENT SYSTEMS. 147 



/)^r«of the uterus, and clofed the wound. Twen- 

 ty-four hours afterwards, he again opened the 

 wound, and found two foetufes in the fuperior 

 part of the tube, that is, between the tefticles and 

 the ligature j and there was no foetus in the un- 

 der part. In the other horn of the uterus that 

 was not tied, he found three foetufes, regularly 

 difpofed ; which proves, fays he, that the foetus 

 proceeds not from the male femen, but that it 

 exifts in the egg of the female. Suppofmg this 

 experiment, which is fingle, had been often re- 

 peated with the fame fuccefs, the conclufion the 

 author draws from it is not legitimate : It proves 

 no more than that the foetus may be formed in 

 the fuperior part of the horn of the uterus, as 

 well as in the inferior; and it is natural to think 

 that, by the preflure of the ligature, the leminal 

 liquor in the inferior part was forced out, and, 

 of courfe, fruftrated the work of generation in 

 that region of the uterus. 



This is all the length that anatomifts and phy- 

 ficians have proceeded in the fubje£t of genera- 

 tion. It only remains that I deliver the refults 

 of my own experiments and inquiries ; and I 

 fliall leave the reader to judge whether my fy- 

 ilem be not infinitely more confonant to Nature 

 than any of thofe which I have enumerated. 



k :a CHAP. 



