DIFFERENT SYSTEMS. 97 



eggs; that In thefe eggs a feparatlon of a tranfpa- 

 rent cryftalline liquor, contained in a fac (aiJi" 

 nios) takes place, and that another external ike 

 (^chorion) inclofes the whole hquors of the egg ; 

 that the iirft thing which appears in the cryflal- 

 line liquor is an animated fanguineous point ; 

 and, finally, that the formation of viviparous a- 

 nlmals is efFeded in the fame manner as that of 

 the oviparous : The following is the account 

 which he gives of the generation of both. 



Generation, he obfervcs, is an operation of the 

 uterus alone ; for not a drop of the male lemen 

 ever enters it. The uterus conceives by a kind 

 of contagion, communicated to it by the femcn 

 of the male nearly in the fanie manner as the 

 load-done commuijicates a magnetic virtue to 

 iron. This male contagion a<Sts not only on the 

 uterus, l)ut on the whole body of the female, 

 which is entirely fecundated, though the uterus 

 alone poflefles the faculty of conception, in the 

 fame manner as the brain has the fole power of 

 conceiving ideas. The ideas conceived by the 

 brain are fnnilar to the images of the obje£t§ 

 tranlmitted to it by the fenfes ; and the foetus, 

 which may be regarded as the idea of the uterus, 

 is fimilar to that by which it is produced. This 

 is the rcafon why children refemble their fathers, 

 &c. 



I will follow the fyftem of our anatomift no 

 farther: What has been faid is fufficient to en- 

 able the reader to form a judgment. But we have 

 remarks of importance to make concerning his 



Vq^. II, G experiments, 



