ii8 EXAMINATION OF 



ovarium, and always differ in fize, are not the 

 true eggs which receive the impregnation, but 

 ferve only to produce the yellow bodies in which 

 the eggs are formed. Befides, though thefe yel- 

 low bodies are not always found in every ova- 

 rium ; yet we always find the rudiments of 

 . them. Malpighius found the marks of them in 

 new born heifers, in cows with calf, and in preg- 

 nant women ; and, therefore, he properly con- 

 cludes, that thefe yellow glandulous bodies are 

 not, as De Graaff afferts, an efled: of impregna- 

 tion. The yellow bodies, he remarks, produce 

 imfecundated eggs, which fall out of the ova- 

 rium independent of any communication with 

 the male, and alfo thofe which fall after impreg- 

 nation. When the impregnated- eggs fall into 

 the uterus, every thing pioceeds in the manner 

 defcribed by De Graaff. 



Thefe obfervations of Malpighius demonftrate, 

 that the tefticles of females are not real ovaria ; 

 that the veficles they contain are not eggs ; that 

 thefe veficles never fall into the uterus ; and that 

 the tefticles, like thofe of males, are only refer- 

 voirs containing a liquor which may be regarded 

 as female femen in an imperfed: ftate. This, fe- 

 men is matured in the yellow glandulous bodies, 

 of which it fills the internal cavities, and flows 

 out after the yellow bodies have acquired their 

 full fize. 



But, before we form a judgm.ent concerning 

 this important point, we muft attend to. the re- 

 marks of Valifnieri, 



