Figure 4. Serrations and Ligiit Reflection. 

 1, GIANT - double crenate; 2, NAPOLEON - fine, dull serrate; 3, GOV. WOOD - coarsely serralev 



irregular: 4. GOLD - sharply serrate. 

 5, BING - glossy; 6, BLACK TARTARIAN - semi-glossy; 7, NAPOLEON - dull. 



