In connection with recent triangulation in Alaska it was necessary to observe a number of Laplace azimuth‐stations between the south coast and Fairbanks and down the Yukon from Fairbanks to Norton Sound. Lieutenant Seaborg was detailed to make the necessary astronomical azimuth‐ and longitude‐determinations on this project. He was also instructed to make latitude‐observations at each station if this could be done without serious delay to the progress of the work, although latitudes are not necessary for Laplace control. In order to facilitate the azimuth‐determinations, a special method was devised by Mr. Swick for use in high latitudes which seemed to work out quite satisfactorily in th