ELASTICITY 235 



Jordan compares the behavior to that of unvulcanized rubber, 

 which may be stretched 100 per cent and yet show perfect 

 return but if elongated beyond this elastic limit shows no elastic 

 qualities. The structure responsible for the return has been 

 destroyed. Beyond the elastic limit, there is a true viscous flow 

 of the highly viscous fluid phase in which the micellar units are 

 embedded. At the elastic limit, the grouping of the micelles, 

 and therefore the structural continuity, of the elastic jelly is 

 destroyed. 



