82 
HINTS TO TRAVELLERS, 
points in its course should also be noted. If the glacier is bounded 
laterally by rocky walls, marks may conveniently be painted on these, 
opposite one another. The vertical height of the marks above the ice at 
the sides should be noted, and the date of the observation recorded. 
A society, entitled the Commission Internationale des Glaciers, has 
been formed to promote the study of glacial movements and other points 
of interest and importance. Their reports are published in the * Archives 
des Sciences,’ Geneva, and have been summarized and translated into 
English in the f Geological Journal,’ Washington. Both of these are in 
the library of the Alpine Club. 
