ADAPTATIONS 97 



by the accident which laid it on its back. We 

 may, if we like, say that it is adapted to get right 

 side up again by this process, but if we do, we 

 must not suppose that we have then explained all 

 that requires explanation, and if we do use that 

 phrase we may remember that no one ever talks 

 about carbonate of lime being "adapted" to make 

 gypsum and consider why the terminology which 

 we consider suitable in the one case should be in- 

 appropriate in the other. 



