114 EXAMINATION OF 



made this material obfervation *. Befides, though 

 Harvey alledged that all animals proceeded from 

 eggs, he never imagined that the tefticles of fe- 

 males contained eggs ; and it was only from a 

 comparifon betv^^een the fac, which he believed 

 to be formed in the uterus of viviparous ani- 

 mals, with the growth and covering of the eggs 

 in oviparous animals, that he maintained that all 

 anirnals were produced from eggs ; and even 

 this is but a repetition of what Ariftotlc had 

 faid before him. Steno was the iirft who pre- 

 tended to have difcovered eggs in the ovaria of 

 females. "He fays, that, in differing a female 

 fea-dog, he perceived eggs in the tefticles, though 

 this animal be viviparous ; and he adds, that the 

 tefticles of women are analogous to the ovaria 

 of oviparous animals, whether the eggs them- 

 felvcs fall into the uterus, or only the matter 

 which they contain. Steno firft difcovered thefe 

 fuppofed eggs ; De Graaff is willing to aflume 

 the difcovery to himfelf; and Swammerdam 

 warmly difputes the point with him, and al- 

 ledges that Van-Horn had feen them before De 

 Graaff. This laft writer, it is true, has been ae- 

 cufed of afterting many things which have been 

 contradided by experiments : He even pre- 

 tended, that a certain judgment might be form- 

 ed of the number of foetufes in the uterus, by 

 the number of cicatrices or empty follicles in 

 the ovaria. In this he is contradided by the 



experiments 



* See Ob£ JuRI Sclu-aderi, Amil. 1674. 



