152 



Common Science 



FIG. 80. How an image is formed on the retina of the eye. 



FIG. 81. A simpler diagram showing how an image is formed in the eye. 



FIG. 82. A diagram showing how a reading glass causes things to look larger 

 by making the image on the retina larger. 



FIG. 83. Diagram showing how a reading glass enlarges the image on the retina. 

 More lines are drawn in than in Figure 82. 



