The stability conditions of flows under large tensions 

 mentioned by Dr., Plesset is evidently of the same type as 

 that discussed by Dro Dergarabedian for superheated liquids o 

 In either case, inception occurs "explosively" in the sense 

 that vaporization of large quantities of liquid takes place 

 very rapidly after the start of cavitation or boiling o Thus. 

 in the venturi nozzle of Crump's experiments^ the cavitated 

 region formed after inception under conditions of tension 

 grew immediately and filled the nozzle to an extent corres- 

 ponding to the size associated with initial inception at 

 vapor pressure and subsequent growth ijntil the same volume 

 flow conditions had been reached. In the case of super- 

 heated liquids, the sudden onset of boiling at large amounts 

 of superheat has been known to shatter glass containers « 



