CROCODILES. 
37 
sure we don't want many crocodiles about. I 
don't mind the pretty-coloured lizards, because 
those little reptiles are harmless." 
Why do you call them reptiles? ' asked his 
sister. 
8. " Because they are reptiles/' replied Tom. 
But you should explain, as teacher did/' said 
his brother. ^'You knoAV he said that crocodiles, 
alligators, turtles, snakes, and lizards were so 
much alike in many ways that we may put them 
all in the same class, and give them the same 
name — reptile. 
9. " He said that reptiles do not feed their 
