the weather suddenly changing to colder, they quick- 

 ly disappeared. Bats and turtles came forth and 

 then vanished in the same way. White finally con- 



Under the great yew in Selborne Churchyard. 



eluded that the myster}^ was the same in both 

 cases — that the creatures were brought from their 

 winter retreats by the warmth, only to retire to 

 them again when it changed to cold. If he had 



xiii 



