VILLI OF THE PLACENTA. 



matrix of the villi, which are regarded by Kolliker as 

 formative cells of the conne -ue. Besides these there 



are also nuclei which have no cell substance around them. The 

 matrix: of the villi is directly continuous with the connec: 



:e matrix of the chorion. 



Between the chorion and the amnion there is still a gelati- 

 nou- ^>called membrana intermedia, which, accord- 



ing to Bischoff's* researches, represents the remains of the 

 fluid originally present between the chorion and amnios. X 

 cellular elements or vessels are discoverable in this gelatinous 



* / Lthre wm den EihuHen des menteHichtn, Fcehu, (Eaaay on 



the membranes of the human fcetns,) 1851 (Kolliker. Bidder.) 



VOL. III. 



