-69a- 



If then the righting movements of the aims are dependent 

 upon the initial stages of the step reflex (oriented tube feet) 

 and the rioting movements of the tube feet are slightly modified 

 step reflexes, righting is itcelf a phase of loooraotion. 







. - 



T'LA^it 



V-j i^Afd 





t 



'irVU, 





