304 A Study of the Structural Unit of the Liver 
determined much better than it is given now, and since it appears that 
the development of the artery and bile ducts are parallel the study of 
the one will help to clear up the other. 
Fig. 62. Fie. 63. 
Fics. 61, 62 and 63. Golgi specimens of the livers of human fcetuses, 5 cm. 
and 10 cm. long, and at term. X 53. After Hendrickson. 
Bile capillaries and ducts can be outlined beautifully by Golgi’s 
method in human embryos 5 em. long, or longer, as Figs. 61 to 63 show. 
