Astronomy is studied in the remainder of the second class year. The texts used are Young’s “General Astronomy” and Michie and Harlow’s “Practical Astronomy.” The principal aim of this course, in addition to its important value in educational development, is to furnish an ample basis for the establishment of stations in explorations and surveys. The class alternates daily by halves throughout the year. TEXT-BOOKS. Sound and Light. Gordon. Mechanics. Gordon. General Astronomy. Young. Practical Astronomy. Michie and Harlow. Numerous standard works on the general subjects covered by the course are available for reference. DEPARTMENT OF MATHEMATICS. NEW CADETS, FOURTH AND THIRD CLASSES. The course in mathematics begins with the new cadet class upon entrance in March, and extends through two years. In the new cadet class year algebra and geometry are taken on alternate days for three months. In both these subjects the matter covered by the entrance examination is reviewed rapidly and, in the case of plane geometry, very briefly before proceeding with the regular course. An examination is held in June upon which the class is graded according to mathematical capacity. In the fourth-class year algebra is completed in alternation with trigonometry. Plane and solid analytical geometry and descriptive geometry follow. In the third-class year a course in the differential and integral calculus is taken, alternating during the latter portion with the subject of mechanics in the department of philosophy. The most advanced students take also a brief course in the theory of errors and method of least squares. The course in algebra covers the entire subject as generally taught in colleges, but the student is expected to have already mastered elementary algebra to include the progressions and the solution of the quadratic equation. The course in elementary geometry includes the books that relate to the plane and those that relate to space, but the student is expected to have mastered the former. Plane and spherical trigonometry includes the complete solution of the plane and spherical triangles. The course in analytical geometry includes the discussion of the general equation of the second degree in the plane and in space. Descriptive geometry includes, in orthographic projections, the right line, the plane, ruled surfaces and surfaces of revolution, tangent planes and intersections of surfaces. It also covers shades and shadows, perspective, isometric projections and, for the upper part of the class, spherical projections. The course in differential and integral calculus covers the ground of the usual college text-book, including briefly the subject of ordinary differential equations. TEXT BOOKS. NEW CADET CLASS. Advanced Course in Algebra. Wells. Elements of Geometry. Phillips and Fisher. FOURTH CLASS.