176 M. G. E. Svedelius on the Changes in the Length and 



The curves reproduced in the same figure are taken on the 

 same sensitive paper, which has thus been allowed to pass the 

 slit in the camera several times. 



1/07J&JZ)'/ 



The sensitiveness of the dilatometer has varied somewhat 

 in two different series of observations. One of these embraces 

 the longitudinal curves reproduced in figs. 1-3, 7-9, the other 

 embraces those reproduced in figs. 4-6, 10-11. 



