CONTRIBUTIONS TO EMBRYOLOGY, No. 51. 



EXPERIMENTAL STUDIES ON FETAL ABSORPTION. 



I. THE VITALLY STAINED FETUS. 



II. THE BEHAVIOR OF THE FETAL MEMBRANES AND PLACENTA 

 OF THE CAT TOWARD COLLOIDAL DYES INJECTED INTO THE 

 MATERNAL BLOOD-STREAM. 



By George B. Wislocki, 



Arthur Tracy Cabot Fellow, Laboratory of Surgical Research, Harvard Medical School. 



With four plates and one text figure. 



45 



