APPENDIX 



377 



FORMULAE FOR CONVERSION OF DEGREES OF TEMPER- 

 ATURE ON ONE SCALE INTO DEGREES ON ANOTHER 



Centigrade (Celsius) scale: Freezing-point = 0; boiling-point = 100. 

 Fahrenheit scale : Freezing-point = 32 ; boiling-point = 212. 



Reaumur: Freezing-point = 0; boiling-point = 80. 



(F-32)4 



Degrees C X 1 .8 +32 = Degrees F. 

 F-32 



Degrees 



1.8 

 RX9 



= Degrees C. 



+32 = Degrees F. 



Degrees 



9 

 RX5 



4 

 CX4 



5 



= Degrees R. 



Degrees C. 



Degrees R. 



ALCOHOL BY VOLUME 

 TRALLES 



(From the Chemlker Kalender.'publlshed by Julius Springer, Berlin.) 



