THE DINOSAUR TAKEN FROM THE ROCK 57 



these pieces were arranged according to the numbers 

 with which they were marked. As each rock was put 

 into its place the diagram made by the man in the 

 field was consulted. Every rock fitted just as the 

 diagram showed it should, and this proved that the 

 work of collecting had been well done. Sometimes 

 a collector is careless in this part of his work, and 

 this carelessness not only makes endless trouble for 

 those who take the bones from the rock, but injures 

 the collector's reputation as well. 



And now, at last, the men were ready to free the 

 skeleton from the rock, a work that would require 

 from one to three years to accomplish, according to 

 the difficulties they should meet as they progressed. 

 Only men who knew the formation of the bones of 

 the Dinosaur as well as a surgeon knows the forma- 

 tion of the bones in the human body, could be trusted 

 with this undertaking. But, as there were in this 

 museum some of the most capable men in the world 

 in this sort of work, there was no delay in beginning 

 the task of taking the Dinosaur from his tomb. 



Carefully, with delicate strokes of various-sized 

 hammers on various-sized chisels, the men chipped 



