304 FRANKLIN PARADISE JOHNSON 
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Fig. 3 Higher magnifications of portion of figure 2, showing interlobular 
septum. H, hepatic vein; P, portal vein. XX 260. , 
Fig. 4 Section of liver of a pig four days old, showing arrangment of lobule 
border cells in parallel layers. H, hepatic veins; P, portal veins. X 50. 
