Fig. 4. Reconstruction of the right jugular lymph sacs, shown in solid 

 black, in a human 10.5 mm. long. Mall collection, No. 109. x about 14. 

 G. N., gasserian ganglion ; S. v., sinus venosus ; V. c, V. cephalica : V. c. i., 

 vena cava inferior ; V. h., vena hepatica ; V. j. i., vena jugularis interna ; V. p., 

 vena porta ; V. p. c, vena cardinalis posterior ; V. s. c, vena subcardinalis ; 

 V. u. (p.), Vena ulnaris (primitiva) ; V. u., vena umbilicalis; W. b, Wolffian 

 body. 



