PLATE 3 



EXPLANATION OF FIGURES 



3 Reconstruction of a portion of the perimesonephroic plexus in a 5 mm. 

 Tragulus embryo. Collection No. 204. X 200. 5, post-cardinal vein; 24, aorta; 

 46, mesial portion of perimesonephroic plexus; 47, ventral portion of perimeso- 

 nephroic plexus. 



4 Cross section showing the relations of the perimesonephroic plexus 

 in a 5 mm. Tragulus embryo. Collection No. 204. X 200. 5, post-cardinal vein; 

 8, perimesonephroic plexus; 13, Wolffian duct; 46, mesial portion of the peri- 

 mesonephroic plexus; 48, mesonephros. 



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