5o THE PRINCIPLES OF MYODYXAMICS. 



(I.) The resisting component of tlie weight 

 is greatest, when the dynamic angle is a right- 

 angle. 



(2.) The resisting component of the weight 

 is least, when the dynamic angle is the most 

 acute. 



(3.) When there is no dynamic angle, there is 

 no resisting component. 



(4.) The displacing component of the weight 

 is greatest, when the dynamic angle is the most 

 acute. 



(5.) When the dynamic angle is a right- 

 angle, the weight has no displacing component. 



(6.) In general the resisting component aug- 

 ments up to a certain point and then diminishes 

 in mao^nitude. 



(7.) In general the displacing component di- 

 minishes up to zero and then augments in mag- 

 nitude. 



36. In so far as the force of the weight is con- 

 cerned, the joint between a movable bone and a 

 fixed bone is in a condition of maximum stability, 

 when the dynamic angle is a right-angle, in the 

 case of any bon\^ lever. But the stability of the 



