36 



THE MUSCLES. 



27. Fig. 11 shows an appliance consisting of two strong 

 elastic cords, with handles, secured to a hook in the floor, 

 so arranged that the patient has to stoop forward to reach 

 them. On raising the body the spinal muscles are power- 

 fully exercised. Fig. 12 shows other modes of using the 

 elastic cords for strengthening the spine and chest. 



FIG. 13. 



28. These various appliances have been combined so as 

 to form a system of gymnastics suitable for parlor use; 

 other appliances have been added by which the muscles of 



