412 THE PHYSIOLOGY OF REPRODUCTION 



resulting from the degeneration of the proliferated epithelial 

 cells. Between it and the spongy layer is the compact layer, 

 also formed from the sub-epithelial layer. In it the glands are 



FIG. 96. The uterine mucosa of the dog about the twenty-third day of 

 pregnancy. (From Duval's " Le Placenta des Carnassiers," Journ. de 

 VAnat. et de la Phys., 1893.) 



mes, mesoblast ; tr, trophoblast ; c, capillary layer ; rf, layer of glandular 

 detritus ; g, glands of compact layer ; Sp, dilated glands of spongy 

 layer. 



