PLATE XXIX. 



Periosteum*. 



" 



$TJ^...;" V. ' 



Periostea! bud " '-- -C : . 



re*^^- % f;; \ \'*P 



&&''**: ; . 



Blood-vetsdg 



filled witli 

 blood 



Fin. 19."). From a longitudinal section of a finger of a four months human embryo. Only 

 the diaphysis of the second phalanx is represented. s.~>. 



