300 



Dr. W. Miller on a 



tending to vanish near 100° C, and £01* ordinary laboratory 

 work quite negligible. 



Expansion of dry air. 

 Temperature. Expansion. 



0° c 



c.c. 



10°-5C. ... 



3-8 c.c. 



20° C 



7-32 c.c. 



30° C 



10-97 c.c. 



40° C 



.... 14-79 c.c. 



50° C 



18-5 c.c. 



60° C. 



22-17 c.c. 



70°-lC 



25-82 c.c. 



80°-2G 29-24 c.c. 



90°-4C 33-38 c.c. 



98°-4C ,... 36*03 c.c. 



Coefficient o£ expansion ='003669, 



Fig. 3. — Expansion of Dry Air. 



o 



40 



C> 35 



K 

 <* 



q30 



1 



% 10 



I- 





















/* 



































A 



y 



i ' 



































/ 



















































/ 



s 



















OC 10 



20 



30 



40° 50° 60° 70° 

 Temperature. 



80 



90 



100 C 



Expansion of sulphur dioxide. 



The gas was prepared by means of sulphur and strong 

 sulphuric acid, and passed through a sulphuric acid drier. 



