102 MATHEMATICAL BIOPHYSICS OF THE CENTRAL NERVOUS SYSTEM 



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A MB C. RIGHT EVE 

 M.B.C. LEFT EYE 

 • K.N.O. RIGHT EYE 

 O K.N O. LEFT EYE 



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3 4 



PER CENT 



Figure 1. — Comparison of theory with experiment: rotation of subjective 

 medial plane due to cylindrical size-lens, axis 180°, before one eye. Curve, theo- 

 retical from equation (4); points, experimental (Ogle, 1938). Abscissa, magnifi- 

 cation-increment produced by size-lens; ordinate, rotation of the plane in degrees. 



