L8 Researches at High Pressures and Temperatures [Jan. 23, 



recombination of lead and helium into radium may be taking place, 

 absorbing in tin's process an energy of 2 J million times that developed 

 by the explosion of an equal weight of T.N.T. 



The transformation of only a minute fraction of the mass of two 

 colliding stars would therefore lie amply sufficient to absorb the whole 

 energy of their collision. 



Emerson said many years ago, "None but the elements can 

 themselves destroy." 



[C. P.] 



