NO. II THE FRESHFIELD GLACIER — PALMER 5 



out at 400 feet. The longitudinal section is also constructed on the 

 assumption that the valley bottom continues back at the same gradient 

 of 125 feet per mile, the surface slope being plotted from the con- 

 tours of the government map. Although this basal gradient is purely- 

 hypothetical, it probably is fairly approximate to the truth on this 

 particular tongue, where the evenness of the surface and its com- 

 parative freedom from crevasses are strong indications of a smooth, 

 regular valley floor beneath. The average slope of the similarly 

 situated Forbes Brook valley adjacent, is i6o feet per mile. 



Six days later (July 19) Station A was occupied again and the 

 line re-determined on the ice which had meanwhile moved down- 

 ward. The amount each stone had advanced was measured directly 

 with a tape. The results are given in the following table : 



Observations on a Line of Stones Set Across the Freshfield Glacier 



Superficial moraine begins and extends 850 ft. to margin of glacier. 

 14 2600 23 3.83 



On south 

 lateral moraine 



B. 3600 200 feet from ice margin. 



Approximate width of glacier on line of stones, 3400 ft. 

 Distance between stations marking the line, 3855 ft. 



The increased average velocity of the southeasterly portion of the 

 glacier as compared with the northwesterly portion is doubtless 



