1888.] 



On the Plasticity of Glacier and other Ice. 



337 



Specimen. 



Change of tension. 



Change of rate. 





kg. per sq. cm. 

 2-55 to 3-85 



1- 45 „ 2 55 



2- 55 „ 1-03 

 103 „ 250 

 2-50 „ 1-80 



mm. per hour per 10 cm. 

 0-0018 to 0110 

 0075 „ 0-026 

 105? „ 010 



0- 010 „ 0-228 



1- 88 „ 0*35 













The clianges of temperature in these cases were insignificant com- 

 pared with the alteration of rate. The 0*105 is uncertain owing to an 

 accident. It was certainly not less, and may have been a good deal 

 greater. 



We append a summary of some of our results arranged in tabular 

 form. Grlacier ice C was the same piece as B, cut rather shorter. 



