159 



mastoid becomes diagonal through the sternum, 

 and brings the (free) right hind foot someivliat for- 

 icarcl with its inner hearing presented. 



a^ The rear part of the composite spine, begin- 

 ning with the third S, forms, by induction, fi*om 

 the neck. The left kind foot is brought more fully 

 on to its outer hearing. 



a'^ Right fore-leg hent and its foot presented for 

 outer hearing by movement of sternum to the left, 

 changing the socket facing as the neck root joint 

 moves. 



a^ Completion of outer bearing of left hindfoot. 



a'^ Completion of action of right fore-foot, as in 

 a'^ but its movement now derived from the rear 

 true ribs. 



B b'^ Begins with the third S, but, as before 

 said, so in counter-action with the neck S that 

 they move almost together. Throws left hind-foot 

 on iniier hearing. Turns right hind-foot on outer 

 hearing and advances it. 



b'. Brings left fore-foot on its inner hearing. 



b'2. Right hind-foot forward outer hearing. 



b^ Eight fore-foot inner bearing. 



b'^ Increase of b'^ 



b^ Increase of b^ 



