At the meeting of the Section of Geodesy held last April, a report was given of the general plan for the readjustment of the first‐order triangulation in the western part of the United States. This plan was conceived by Major Bowie and formulated by him in a general way early in 1924. We shall now give some account of the practical application of this Bowie method to the extensive scheme of triangulation west of the 98th meridian, inclusive of the arc along this meridian.The first step in the general scheme is to adjust a figure at the junction of two arcs, so that a length and azimuth of a line may be determined that is to be held fixed in the adjustment of the section ending with this line. In the ideal junction figure, a measured base should be found and an observed Laplace azimuth. In some cases, where such conditions are found, the junction figure may consist of a couple of quadrilaterals; in other cases, a more extensive figure has to be used, because of the rather involved figures in the triangulatio