262 G. F. Barker—Physiological Chemistry, = 
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active. Experiment has shown the latter to be the true hypoth- 
ae . 
esis ; there exists, even before the liver can act, a true hepatic 
D 
appears as the fwetus approaches birth. The placentas of thes? 
‘ina variation of it, Bernard undertook a re-examination of 
question ; and this with complete success, A remarkable 
*C. B., xlviii, 77. 
