HUBRECHT. Pl. BB. 
135 136 
Fig. 133. The blastocyst of Tragulus, opened, to show the small um- 
bilical vesicle wv, the amnion /a) and the incipient allantois @//, d¢ diplotropho- 
blast (after Selenka, ’91). — Fig. 134. Trophoblastic proliferations ¢- with 
lacanae /Z) in which albuminiferous fluid is being absorbed (after Selenka, ’87). 
— Fig. 135, 136 and 137. Sections through three stages of adhesion between 
uterine epithelium and trophoblast in Tupaja (after Hubrecht, 99). ¢ tropho- 
blast; en entoderm; ¢ uterine epithelium. 
