RED. 



YELLOW. 



BLUE. 



RED. 



YELLOW. 



BLUE. 



Fig. 4. 



Fig. b. 



A.,> 



Red 



A.i. 



Yello 



A.,, 



"BL 



Figure 4. Three color photograph of a white light point source taken with 

 lens having same chromatic aberration as the eye. Magnification 110 diame- 

 ters. 



Figure 5. Image bundles which would be formed by light from red, yellow 

 and blue point sources passing through a lens perfectly corrected for chromatic 

 and spherical aberration. 



Figure 6. Three color photograph of a white light point source with a 

 lens corrected for chromatic aberration. Magnification 110 diameters. 



