PHOTOGRAPHS 
S 
The geographer who shall undertake in the future to study 
the variation of Alaska glaciers will have use not only for 
the fuller details of the original photographs but for a 
more complete series, and the following information is 
given for his benefit. 
Of the many series of photographs made by the mem¬ 
bers of the Expedition, three may be regarded as public, 
and these also contain the most important records of the 
glaciers. Mr. E. S. Curtis, the official photographer of 
the Expedition, made the largest and best views, and keeps 
them on sale at his photographic establishment in Seattle, 
Washington. The negatives made by Dr. C. Hart Mer- 
riam are filed at the office of the Biological Survey, U. S. 
Department of Agriculture, Washington, D. C. My own 
negatives are filed at the office of the U. S. Geological 
Survey, Washington, D. C., where a set of prints may be 
seen and prints from negatives may be ordered. 
The dates of our photographs for the several glaciers 
are as follows, the year 1899 being understood in each 
case: Amherst, June 26; Barry, June 26-29; Bryn Mawr, 
June 26; Cataract, June 27; Charpentier, June 11; Colum¬ 
bia, June 25-28; Crescent, June 26; Crillon, July 24; 
Davidson, June 6; Grand Pacific, June 12; Grewingk, 
July 21; Harriman, June 27; Harvard, June 26; Hidden, 
June 20; Hubbard, June 19-22; Hugh Miller, June 11; 
Johns Hopkins, June 12; La Perouse (near views), June 
18; La Perouse (distant views), June 18 and July 24; 
Muir, June 8-13; Nunatak, June 20; Radcliffe, June 26; 
Reid, June 12; Roaring, June 27; Serpentine, June 26-27; 
Smith, June 26; Surprise, June 27; Turner, June 19-22; 
Vassar, June 26; Wellesley, June 26; Yale, June 26. 
The table on page 6, giving series and negative num¬ 
bers of photographs from which text figures were made, 
includes most of the figures based on photographic views. 
Information as to others is given in their labels and other 
