Very interesting is the record of the Muir Glacier, exhibited here in a map. This is the largest of the group about the various arms or fiords of Glacier Bay. It is the most accessible: every school boy reads about it in his geography, and tourist steamers visit it every Summer. Muir saw it in 1880, and made notes and sketches. At that time the ice mass filled up Muir Inlet as far as a point represented on the map by an unfinished line of x’s starting from the right. By 1886, when Wright observed the same glacier, the ice cliff had retreated northward about 4,000 feet to the line so marked. When Reid observed it in 1890 the ice cliff had further receded 3,300 feet to the line appropriately marked, but in 1892 the same observer found the ice cliff in a position some 700 feet further south than two years before. (He made two observations in each year, and all the lines are marked on the map.) In 1899 the Harriman expedition found the glacier sea wall 1,000 feet back of its 1892 position. All of which shows in nineteen years a rapid retreat for ten years, then a slow advance for two vears, then a resumed retreat for seven years more, the net retreat in the whole nineteen years being something over a mile and a half.

Source: The New York Times