58 MIGHTY ANIMALS 



the rock away from the fossil. The man who 

 worked on the rock in which nothing was visible 

 but the grinning jaws knew that he would be likely 

 to find all of the Dinosaur's skull within the stone. 

 But how was he to get this skull out without breaking 

 it with his chisel? He could avoid this disaster 

 because he knew so well how the bones in the heads 

 of different Dinosaurs are shaped. The position of 

 the jaw helped him to understand where the rest 

 of the head lay. Of course, this head might be found 

 in a shattered condition, and if so, he would be 

 obliged to work all the more cautiously in order to 

 recover every fragment so that after all the bones 

 had been freed from the rock, they could be cemented 

 together into a skull. 



But this Dinosaur's head proved to be remarkably 

 well preserved, without a bone displaced. It took 

 many weeks to get it from the rock, but, as the 

 stone was chipped off, a little more each day, the 

 skull emerged farther and farther from its tomb and 

 took on an appearance of life that was thrilling to 

 watch. There was a fierceness in the set of the 

 open jaws that spoke of this creature's violent sensa- 



