DETERMINATION OF SIZE OF HEART BY X-RAYS 



461 



TABLE 12 

 Relative heart muscle weight in individuals grouped according to height after W. 



Mailer 



BODY LENGTH 



N0MBER OP 

 INDIVIDUALS 



ABSOLUTE HEART 

 WEIGHT 



RELATIVE HEART 

 WEIGHT 



Men 



Women 



TABLE 13 

 Relative heart 'muscle iveighl in adults grouped according to age after W . Midler 



of W. Miiller seems to have been the most extensive. He 

 found the musculature of the left ventricle to weigh "approxi- 

 mately twice that of the right ventricle and the musculature of 

 auricles to weigh approximately one-fourth that of the ventri- 

 cles. The weight of the values of the heart is about two per 

 cent of the weight of the heart as a whole. 



THE AMERICAN JOURN.\L Of AN.^TOMY, VOL. 23, NO. 2 



