THE MIGHTY DINOSAURS 21 



and not of his voice. For no one has any idea 

 what sort of voices were possessed by the animals 

 which lived before man. If they were in proportion 

 to their size, it is fortunate there were no human 

 beings living then to hear the fearful din. When 

 large numbers of Dinosaurs were together what 

 deafening sounds must have rent the air. 



Although these creatures were so very stupid and 

 were always at war with one another, many of 

 them lived to be very old. Just how old no one 

 pretends to say, but some men have expressed the 

 opinion that the largest lived for hundreds of years 

 and kept on growing all the time. For, as all 

 reptiles grow as long as they live, and as the Dino- 

 saurs belonged in the reptilian class, there is every 

 reason for believing that each additional year of 

 one's age meant an increase in its size. 



Probably all of these animals could swim and 

 lived, for at least part of the time, in the water. 

 To have seen the gigantic ones traveling back and 

 forth through the streams, stretching their long 

 necks upward and eagerly scanning the shores for 

 friends or enemies, would have been better sport 



