492 



Refraction. Total Reflection. 



No. 53871 



1 Reflection! on plane 3. Refraction when passing 6. Refraction in Prism. 10. Bi-conyex Lens 



Mirror. from Glass to Air. 7. Refraction in Liquids. 11. Reflection < 



2. Refraction when passing 4. Total Reflection in Glaat. 8. Plano-concave Lent. 

 from Air to Gla.-s. 5. Refraction inl'laneGlasses 9. Bi-eoncave Lens. 



Mirror. 

 12. Reflection on Convex 



Mirror. 

 53 871 B. 1 : 5. Some Demonstrations with the Kolbe Refraction Apparatus. 



CI. 1300,5795,5017, 6512. 



