196 



(Left) Anterior Line Leading. 



Forcing A a^. 



Action of a^ contin- 

 uing, and spreading 

 through a2, equalizes 

 the hinder limbs on 

 their outer bearings. 



Head joint condyles 

 equalize, in the thor- 

 ough movement, as to 

 their posterior end 

 pressure. 



Forcing A a". 



Action of a'l contin- 

 uing and spreading 

 through a'» 



The front C C of the 

 lung tips (§ 112) equal- 

 ize as the movement 

 turns on them. 



Anterior cross-line 

 ends — still in focus be- 

 tween the upper and 

 lower lung lobes, and 

 further moving the up- 

 per corners of the ster- 

 num and the sides of 

 spine at the small 

 of the back — now 

 equalize the lower jaw 

 articulations on their 

 outer bearings, the 

 (right) articulation 



making a sort of lateral 

 epicycloidal movement 

 on the (left) one. 



The head-condyles 

 equalize in the forward 

 movement across (§ 92) 

 the sockets by inner 

 edge. 



All being thus drawn 

 up to the head, the arm 

 sockets equalize in out- 

 er bearing from right 

 to left.* 



♦This action at the shoulder 

 joints, it will be seen, changes the 

 direction of the line of general 

 pressm-e (§ 91), which up to- 

 this point, has been toward 

 the right ; and introduces, by 

 changing it incipiently toward 

 the left, the posterior line equal- 

 ization which ends in the head 

 joint sockets. 



The eflect of this on the head 

 connection is to bring the stress 

 on the right stcrno-mastoid at 

 right upper corner of the ster- 

 nvim. 



