82 THE PRINCIPLES OF M VOD VXA.MICS. 



aspect showed an area of about three and one- 

 half square inches. 



69. From the above measurements may be 

 drawn the following conclusions— namely, 



I. In the lower part of the forearm the volume 

 of the muscles on the posterior aspect is to the 

 volume of the muscles on the palmar aspect as 

 9:16. 



II. In the upper part of the fore-arm the vol- 

 ume of the muscles on the posterior aspect is 

 to the volume of the muscles on the palmar 

 aspect as 4 : 9. 



III. In the middle of the arm, the volume of 

 the muscles on the posterior aspect is to the 

 volume of the muscles on the palmar aspect as 

 5: 7. 



IV. In general, the volume of the muscles on 

 the palmer aspect of the upper limb is nearly 

 twice as great as the volume of the muscles on 

 the posterior aspect of the same limb. The 

 ratio may vary from the above estimate. 



70. It is well known that the proper use of a 

 muscle will increase its power up to a certain 



