42 THE OPEN BOOK OF NATURE 
give an opinion about any rock or mineral, much less 
give it a name, until you are confident you are 
correct in your observations and conclusions. 
I have heard grown-up persons, who ought to 
know better, say, “There is no geology in my 
Fro. 7.—Coat-Fraups anp Natrurat Drivistions or GREAT 
BRITAIN. 
district,” or, perhaps, ‘‘ The geology in my neighbour- 
hood is very meagre.” Let me say that there is no 
district where the study of geology cannot be practi- 
cally pursued. Some districts are undoubtedly 
richer than others in geological wonders and prob- 
