624 Wisconsin Academy of Sciences, Arts, and Letters. 
RESULTS. 
The number of dueti hepatici varied from one to nine. The 
curve (Fig. 3) shows the mode to be two, this condition being 
present in thirty-eight cases. 
38 
Fig. 3.—Curve of the number of ducti hepatici. 
A ductus hepaticus proprius was found in twelve cases (Fig. 
2 ). In five other cases the component ducts of the ductus hepat¬ 
icus dexter joined the ductus hepaticus sinister independently 
(PL XLIX, Fig. 3 ). The ductus hepaticus sinister was present in 
ninety-nine cases; the ductus hepaticus dexter in only fifty-five 
cases. This great difference is due to the frequency with which 
the ducts from the right median lobe entered the ductus cvsticus 
separately. The high percentage in the case of the ductus he¬ 
paticus sinister is undoubtedly due to the fact that it is formed 
by ducts from two large lobes, fianked on either side by a smaller 
lobe. The lobes which contribute to the formation of the ductus 
hepaticus dexter et sinister are shown in Table I. 
