PLATE 1 



EXPLANATION OF FIGURES 



36 Median view of right and left halves of a reconstruction of the liver of 

 an Amblystoma emhryo 7 mm. long. X 70. 



37 Median view of right and left parts of a reconstruction of the liver of an 

 embryo 9 mm. long. X 70. 



38 Posterior view of a reconstruction of the liver of an embryo 9 mm. long. 

 X 100. 



d., early anlage of duct G.B.. gall-bladder 



D. chol., ductus choledochus Li., liver 



D.cy., cystic duct Lt. Rt., left and right parts of hepatic 



D.m., dorso-medial duct anlage 



D.h.d., right hepatic duct c.l., ventro-medial duct 



D.Ji.s., left hei)atic duct 



268 



