Variations of Sierra Glaciers. 



25 



It is, of course, desirable that copies of all views be 

 systematically preserved by the Club, so that they may 

 be accessible at all times, and that those who are planning 

 excursions to glaciers may readily acquaint themselves 

 with the earlier work. This suggestion applies not only 

 to views that may be made in the future, but to views 

 now in existence. Valuable records are doubtless already 

 contained in the photographic collection of the Club, 

 and others are in the possession of members and their 

 friends. A little work by some officer or committee of 

 the Club would bring together the available views and 

 discover, at least approximately, the dates of their making. 



