Hygiene for young people . Figire 34.—Wrong position of the lamp in reading or study. They often sit on a chair at the side of thetable and nice a lamp without any shade on is quite wrong. If a book is too heavy to THE EYES. 03 hold in the hands, yon must place it on the table,of course; but in this case you should alwaysplace a shade upon the lamp, so that the lightwill fall upon the page and not upon your Kioirk 85.—Right position of the lamp in reading or study. If the book is small and not heavy, you shouldturn your back to the lamp and get the light tofall straight upon the
Hygiene for young people . Figire 34.—Wrong position of the lamp in reading or study. They often sit on a chair at the side of thetable and nice a lamp without any shade on is quite wrong. If a book is too heavy to THE EYES. 03 hold in the hands, yon must place it on the table,of course; but in this case you should alwaysplace a shade upon the lamp, so that the lightwill fall upon the page and not upon your Kioirk 85.—Right position of the lamp in reading or study. If the book is small and not heavy, you shouldturn your back to the lamp and get the light tofall straight upon the page. If you are readingin a room in daytime, you should follow thesame rule: sit with your back partly turned tothe window so that the light falls on the bookover your shoulder. 94 HYGIENE FOR YOUNG PEOPLE. QUESTIONS. 1. Why is it difficult to see objects under water? How is it thatwe cannot see clearly what is written on some blackboards ? Whatis the chief thing in a good blackboard ? Is the one in your school-room shiny ? 2. How many windows are there in your schoolroom ? Howdoes the light fall on the desk at which you study in school ? Howdoes it fall upon the table at which you study at home ? To youuse a lamp shade 1 3. The type, the length of line, and the space between the linesin this book (not in these questions) are about right for your them with others in books that you use and see whic
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