THE VERTEBRATA OR VERTEBRATES. 



Skeleton of the highest Vertebrate Man. 



cm, cranium; cv, cervical vertebra ; sc-cl, scapula and clavicle; h, humerus; Iv, lum- 

 bar vertebra; p, pelvis; ,, sacrum; , ulna; r, radius; c, carpus; me, metacarpus; ph, 

 phalanges; fe, lemur;*, tibia; /, fibula; to, tarsus; mt, metatarsus; pt, phalanges 



Within the cranium there is an organ called the brain, 

 from which there is a branch called the spinal cord, ex- 

 tending the whole length of the body, and contained in 

 an elongated cavity or tube formed by the processes 

 arising from the upper side of the centrums or main bodies 

 of the vertebrae. 



