PRONTO UEINIWNE VAM MCA ION OF Wists IIB = 
IMOMMOGIVAVEIS KANE, Mle, WstOID) Ole SUIRWIEVAUING IO) 
Misha, yeuUNID) GILAVUBIN, ALIAS ICA, 
Ir 1s believed that the method of photographic surveying, as 
developed by Mr. E. Deville, surveyor general, Dominion of 
Canada, will prove of great assistance to those engaged in the 
study of the motion of glaciers. The method is briefly described 
by the writer in the annual report for 1894 of the Association of 
Ontario Land Surveyors. 
While engaged at other work in connection with the Canada- 
Alaska boundary survey,—Mr. W. F. King, H. M. Commis- 
sioner, —during the past season (1894) I embraced the oppor- 
tunity of taking a number of views of the Baird Glacier, Thomas 
Bay, from the same stations and at different times for the pur- 
pose of studying its motion near its termination. The stations 
occupied were three in number, all situated on the fluvio-glacial 
plain which extends for upwards of half a mile between the 
glacier and the sea. The bases used were 865 and 2065 feet in 
length, and were measured with a tape, and their azimuth deter- 
mined with a transit from solar observation. Mountain peaks 
and other fixed points within the photographic field were also 
read upon, for the purpose of orienting the views. Two crossed 
rings were painted on the rock bordering the east side of the 
moraine and tied to the triangulation for future reference, should 
any one again take observations or measurements of the glacier. 
The work done is but a small part of what might or should be 
done for a complete study of the motion of the glacier in all its 
parts. This was beyond my sphere and the time available. How- 
ever, the little that was accomplished will show satisfactorily the 
applicability of the camera for the study of glacial motion, and 
also give some facts regarding the motion of the Baird Glacier. 
512 
