HONK 63 



tin- i analiculi. In fart, tin- hone corpuscles lie in the 

 in. it 1 1\ in iiitu h the same way as cartilage cells lie in the 

 cartilage matrix. 



A Burnt Bone. If a bone is heated in a red fire the 

 animal matter is burnt, that is, it is oxidised chiefly to carbonic 

 arid and water, which are driven oft", and the mineral matter 

 remains as a white mass which retains the form of the bone, 

 but readily crumbles, forming the bone ash, consisting only of 

 mineral matter. The mineral matter is large in amount : it 

 forms two-thirds of the weiyht of dry bone. It consists chiefly 

 of phosphate and carbonate of lime. 



