The Shoulder Joint. — The shoulder joint, formed as it is by the shoulder-blade (scapula), collarbone (clavicle), and the arm bone, is most beautifully designed and executed. It comprises a shallow ball and socket joint, the supporting the freest rotary movements. The shallowness of the socket, however, accounts for the frequent dislocations [...]

Bones of the Spinal Column. — The twenty-four bones of which it consists are so stiffly locked together as to form a chain that will bear and support the heaviest burdens, yet so flexible that it will bend like India rubber; within this wondrous column heights of delicate error that would thrill at the [...]