233 



On posterior lines (by induction). Since the last 

 point in the development of the anterior lines was 

 a bearing on the shoulder-blades, some action 

 on these will result from each stage in the subse- 

 quent development of the posterior lines until they 

 bear on the lower jaw. 



Ophidian Spine. — Interchange of inner bearings 

 between right and left sides of lower ribs begin 

 to straighten these ribs in double twist, and thus 

 complete the filKng of the lower lung lobes (reac- 

 tion). Interchange of inner bearings and between 

 sides of the upper C, (proper action,) and com- 

 mencing filling of the upper lung lobes from 

 their lower portions for secondary action. Then, 

 posterior cross-line ends adjust themselves between 

 the lung lobes for j)^'i'nary section. 



Composite Spine. — As the interchange of inner 

 bearings between the lower C ribs continues from 

 the reactionary movement, its effect extends in the 

 muscles from the lower end of the spine to the 

 fi'ont of the pelvis, and does not yet reach the hip 

 socket. Extended interchange between lower ribs 

 of inner bearings, which adds to filling of lower 



gone before. Thia movement changes the "general lines of thrust" 

 against the edges of the head joint sockets. 



The lung tips (second C) movement occurs with the two condyle 

 movements. 



