This text book was, for the most part, originally prepared in the form of lectures and pamphlets for the instruction of student officers of the U. S. Army Service Schools at Fort Leavenworth, Kansas, and it has had the test of several years of use criticism and correction by a most intelligent body Of instructors and students. In Surveying no departure from the regular and recog nized methods has been attempted. Indeed, at this time, it would be difficult to add anything new or original to the many excellent text books on this subject. Attention is invited, however, to the treatment herein presented Of the adjustments of instruments, particularly with reference to the level tube to the marking Of the stadia rod which automatically applies the correction for the constant of the instrument; to the methods of applying latitudes and departures in reducing and plotting a survey and in computing areas; and to the methods of resection with the plane table.