

of 



T}- 



EXPLANATION OF PLATE XIII 



UPPER FIGURE. PRINCE WILLIAM SOUND 



An index map of the sound, showing positions of Port Wells and 

 Columbia Bay. Based chiefly on United States Coast Survey chart 

 NO. 3091. 



LOWER FIGURE. SKETCH OF PORT WELLS 



Surveyed by Henry Gannett, June 26 to 29, 1899. Drawn by Gil- 

 bert Thompson. Details about Amherst Glacier are in part from the 

 map of an expedition under Captains Glenn and Abercrombie, U. S. 

 A. ; and use was made also of photographs. 



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