AUGUST 171 



tween them they will live a year; but he will 

 have two months of that year and they will 

 have ten. Not that they will get that 

 much more out of life, for they will prac- 

 tically sleep, many of them, eight months 

 of their ten, and he sleeps once only, and 

 then for about two weeks in all his two 

 months of life. His mother probably laid 

 her dainty egg on the leaf of a tulip-tree 

 some time in June. There his voracious 

 caterpillar childhood was passed. But when 

 the eggs laid by this generation have in their 

 turn spent their youth on the same beloved 

 tree, they will hang themselves up by a 

 shoulder-strap in some secure place, and 

 there they will swing through all the rigors 

 of winter without protection, and at any 

 temperature known in the United States. 



FROZEN ANIMALS 



It is almost startling to think of life that 

 can be frozen solid and not be any the worse 

 for it. But this is really not a very uncom- 

 mon event amongst many cold-blooded ani- 

 mals. Even the housed and pampered 



