( 10 ) 



III. Corresponding Degrees in the 

 FahrenKeit and Centigrade 

 Scales. 



Fahr. 



500 

 450 

 400 

 350 

 300 

 250 

 212 

 210 

 205 

 200 

 195 

 190 

 185 

 180 

 175 

 170 

 165 

 160 

 155 

 150 

 145 

 140 

 135 

 130 

 125 

 120 

 115 

 110 

 105 

 100 

 95 

 90 

 85 

 80 

 75 

 70 

 65 

 60 

 55 

 50 

 45 

 40 

 35 

 32 

 30 

 25 

 20 

 15 

 10 

 5 

 



- 5 



- 10 



- 15 



- 20 



- 25 



- 30 



- 35 



- 40 



- 45 



- 50 



Cent. 



260' 

 232-22 

 204-44 

 176-67 

 148-89 

 121-11 

 100-0 

 98-89 

 96-11 

 93-33 

 90-56 

 87-78 

 85-0 

 82-22 

 79-44 

 76-67 

 73-89 

 71-11 

 68-33 

 65-56 

 62-78 

 60-0 

 57-22 

 54-44 

 51-67 

 48-89 

 46-11 

 43-33 

 40-56 

 37-78 

 35-0 

 32-22 

 29-44 

 26-67 

 23-89 

 21-11 

 18-33 

 15-56 

 12-78 

 10-0 

 7-22 

 4-44 

 1-67 

 0-0 



- 1-11 



- 3-89 



- 6-67 



- 9-44 



- 12-22 



- 15-0 



- 17-78 



- 20-56 



- 23-33 



- 26-11 



- 28-89 



- 31-67 



- 34-44 



- 37-22 

 -40-0 



- 42-78 



- 45-56 



Cent. 



100 



98 



96 



94 



92 



90 



88 



86 



84 



82 



80 



78 



76 



74 



72 



70 



68 



66 



64 



62 



60 



58 

 56 

 54 

 52 

 50 

 48 

 46 

 44 

 42 

 40 

 88 

 36 

 34 

 32 

 30 

 28 

 26 

 24 

 22 

 20 

 18 

 16 

 14 

 12 

 10 

 8 

 6 

 4 

 2 

 



- 2 



- 4 



- 6 



- 8 



- 10 



- 12 



- 14 



- 16 



- 18 



- 20 



IV. Refractive Indices, Dispersiv* 

 Po-wers, and Polarizing 

 Angles. 



(1.) Refkaotive Indices. 



