Caption: Course Catalog - 1898-1899
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180 GENERAL DESCRIPTION OF COURSES practice of civil engineering. An essential part of the work is the theory of astronomical instruments. Campbell's Practical Astronomy. I.; BRENKE. 7. Tu., Th.; i and 2; (2). Professor MYERS and Mr. Required: Astronomy 4. THEORY OF ORBITS AND SPECIAL PERTURBATIONS.—This course embraces the following subjects: The formation and integration of the differential equations of motion of a system of bodies and the derivation of the laws of undisturbed elliptic, parabolic, and hyperbolic motion. An investigation of the various formulae and methods for finding the special perturbations of a heavenly body constitutes an essential part of this course. The methods of Encke, Hansen, and of Variation of Parameters, are developed and studied at length. Oppolzer's Lehrbuch der Bahnbestimmung. Professor MYERS. Required: Mathematics 1, 3, 7, 9, 14, 16; Astronomy 4. [Not given in 1899-1900.] 9. CELESTIAL MECHANICS.—This course is a continuation of course 7, and has to do chiefly with the development and discussion of the absolute perturbations both for the case in which_ the orbital eccentricities and inclinations are small, and in which they are so large as to make the ordinary series too slowly convergent, or even divergent. Some time is also given to the study of subjects connected with figures of equilibrium of the heavenly bodies, and such other questions as are treated in Tisserand's Mecanique Celeste. Professor MYERS. Required: Astronomy 7. 11. 12. 13. 10. [Not given in 1899-1900.] CALCULUS OF VARIATIONS.—See Mathematics 20. SPHERICAL HARMONICS.—See Mathematics 21. POTENTIAL FUNCTION.—See Mathematics 22. ASTRONOMICAL SEMINARY AND THESIS.—The work of this seminary is on subjects either related to those considered in the senior courses, or connected with questions arising out of thesis investigations. This course is given in conjunction with Astronomy 7 and 9, or with Mathematics 12 and 13, according as the one or the other is current. /. and II.; Tu., Th.; 7; (2). Professor MYERS. BIOLOGY 1. ELEMENTARY BIOLOGY.—This is a, laboratory and lecture course on the morphology, physiology, and cecology of both botanical and zoological types. The work is so directed as to lead to an
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