READING, BOOK PRINT, AND GLASSES 75 



father should take you to the oculist. Probably you need 

 glasses. 



When you read this page, if you do not see each line 

 and each letter distinctly, or if you have a tired feeling 

 iri the eyes, you should tell your father or your teacher. 



We call people nearsighted when they have to hold 

 their books very near to the eyes to read ; we call them 

 farsighted when they have to hold them too far away. 

 Neither kind of sight is quite right. If you have to 

 hold this book nearer to your eyes than twelve inches, 

 or farther off than seventeen inches, you may need 

 glasses. The oculist will tell you. 



Many children need glasses for a few years only and 

 are able to go without them as they grow older ; whereas 

 if they do not have them when they need them, they 

 suffer later. For this reason, if you have any trouble, 

 your father should take you to the oculist once or twice 

 a year. 



QUESTIONS 



1 . How are houses lighted ? 



2. Why is it best to have the light fall over the left shoulder 

 on the page? 



3. What objection is there to having it in front? behind? on 

 the right? 



4. Why should blackboards be opposite .the windows and not 

 between them? 



5. Give some of the rules about paper and ink, blackboards 

 and slates. 



