202 



(Eight) PosTERiOK Line Leading. 



forcing of Bb'3. 



The pressures contiu- 

 ually collecting and 

 swelling at the anterior 

 end of the left head 

 joint socket, equalize 

 with the similar point 

 of the right socket, so 

 far as the displaced an- 

 terior cross-line end al- 

 lows. 



The shoulder- joints 

 ■equalize, the right giv- 

 ing oj6f to the left, on 

 which latter the stress 

 of the movement de- 

 cidedly comes. 



Forcing B b^. 



The lower C C of the 

 lung tips equalize as 

 the head joint, with the 

 upper C of the neck S, 

 allows the turning of 

 the outer edge of its 

 sockets. * 



The lower jaw artic- 

 ulations equalize, 

 changing for this suc- 

 cession of movements 

 (as at A a^ the shoul- 

 ders did for the former 

 one) the general line 

 of bearing. But it is 

 to be remembered that 

 all the lines gained are 

 to be held, and that the 

 ''induction " of the an- 

 terior line will make its 

 own alterations. 



* The pressure of the left socket 

 should diminish as it equalizes 

 with the right (both being reflect- 

 ed pressures) ; but the displaced 

 cross-line end still holds back the 

 movement. 



