1T4 DEVELOPMENT OF BONK 



The periosteum, with some, has the sole credit of form- 

 ing callus; hut this cannot he entirely true, as instances 

 have occurred where the periosteum has heen stripped off, 

 and yet the fractured hones have united, callus has heen 

 formed, and the periosteum itself again restored. Bichat 

 supposes that where the hones are not kept in contact, 

 granulations spring up, and form first a gelatinous deposit, 

 then cartilage, and, finally, hone, when the fractured ends 

 are perfectly restored. 



The tissues composing the letters of the alphahet, and 

 which have just heen examined, are variously comhined to 

 form the different organs of the hody, constituting the 

 language of anatomy, which introduces us to the Second 

 Part, "beginning with the head. 



coagulable lymph is effused between the broken ends of the bone, and the pro- 

 cess goes on like adhesion any where else, with this difference, that phosphate 

 of lime is afterwards deposited in the new tissne. See Ranking^ Abstract, 

 1850, and Buffalo Medical Journal for February, 1853. 



