Sir William Bragg 47 



' jolly ' occupations — that one is always finding some- 

 thing out and that there is no crossword puzzle which can 

 rival in interest the practical working out of a puzzle in 

 chemistry. He likes to see younger people keen on 

 Science, because the future of the nation depends to such 

 an extent on scientific efficiency. But he gives this word 

 of warning: " It would be a mistake to suppose that 

 because scientific work is jolly it is therefore easy. 

 Much hard work has to be done before there is any ease 

 about it." 



