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



[x.) The anomalous length and temperature changes seem 

 to appear simultaneously and consequently at about the same 

 degrees of temperature. These anomalous length and tem- 

 perature changes do not, however, correspond to each other 

 in regard to the intensity of the phenomena. The changes in 

 length are, according to the preceding proofs, greatest in soft 

 steel, and about equally as great in hard steel and soft iron ; 



