



FIG. 92. A LONGITUDINAL SECTION or THE Two DISTAL PHALANGES FROM THE 

 FINGER OF A FIVE-MONTHS' HUMAN FETUS. 



Kn, cartilage showing calcification and resorption; ek, enchondral bone; M, 

 marrow cavity; pk, periosteal bone. X 15. (From Sabbtta's "Histology.") 



SI 



