View of Kinne F. Williams, a state forester, demonstrating the operation of an alidade on a table adopted for use in fire observation towers, in conjunction with a United States Geological Survey map. The profile panorama map and U.S.G.S. sheet is shown in position, but without glass cover. An alidade is a surveying/mapping instrument used for determining directions. This image was created to record the forest fire service activities of the New York State Conservation Commission.
Source: New York State Archives, New York (State). Photographic prints and negatives, [ca. 1904-1949], 14297-96A, Box 75, SARA No. 1039.
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