186 54. Elementary Watch Mechanisms. An elementary shop course designed to develop the necessary skill and technique in disassembly, cleaning and assembly of watches, and replacement of minor parts. Five quarter hours. Autumn. Reynolds 55. Intermediate Watch Mechanisms. The overhaul of the escapement, replacement of balance staffs, resetting of pallet jewels, truing and poising balance wheels and resetting roller jewel and roller table. Five quarter hours. Winter. Reynolds 56. Advanced Watch Mechanism. A special shop course given to students who have completed five quarter hours of watchmaking. The course includes final adjustments, correction for temperature changes, correction for position and inspection and estimation of needed repairs. Advance lathework and clock repairs, sales training, ordering materials and a thorough familiarity with all makes of watches. Five quarter hours. Spring. Reynolds 57. Small Clock Repair. The bench practice of small clock repairs, replacing parts, making parts, adjusting parts, and shaping plastic crystals. Five quarter hours. Autumn, Winter, Spring. McCormac 58. Complicated Clock Repair. Chime clocks, intricate clock mechanisms, and French clocks, their construction and repair. Five quarter hours. Autumn, Winter, Spring. McCormac 59. Advanced Clock and Timer Repair. An advanced course in repair of all kinds of clocks. Special problems on timers and unit measurement. Five quarter hours. Autumn, Winter, Spring. • McCormac 70. Self-Winding Watches. Self-wind and calendar watches, their construction and repair. Five quarter hours. Autumn, Winter, Spring. McCormac 71. Watch Manufacture. Making parts for intricate watch mechanisms and special timers. Five quarter hours. Autumn, Winter, Spring. McCormac 72. Special Unit Timers. An advanced course dealing with practical problems, designs of dials for special uses and overview of special watches. Five quarter hours. Autumn, Winter, Spring. McCormac Trade Technical 61. Time Keeping Mechanism. The history of horology and theory of timekeeping mechanisms, and a study of the metals used in watchmaking; also the process used in the heat treatment. Five quarter hours. Autumn. Reynolds 187 62. Theory of Metal Machining and Clocks. The study of design and construction in the watchmakers lathe and lathe attachments. Attention is also given to the study of different graver of cutting tool edges. Problems in thread cutting on the lathe. Clock nomenclature and parts are also studied. Five quarter hours. Winter. Reynolds 63. Theory of Hairspring and Jewel Setting. A theory course dealing with watch hairsprings, size, shape, types of ovedcoils, adjustments and the importance of time keeping. The study and purpose of jewels in a watch. Five quarter hours. Spring. Reynolds 64. Power and Train Mechanism. A theory course dealing with power supply and distribution. The development of gears and gear teeth are also studied. Watch nomenclature and purpose of parts. Five quarter hours. Autumn. Reynolds 65. Theory of Lever Escapements. Theory of jewels and metal friction including method of lubrication, setting and proper end shape of arbor and lever escapement time pieces. Five quarter hours. Winter. Reynolds 66. Fundamentals of Finishing and Adjustments. A theory course dealing with the adjustment of watches to both position and time. Special emphasis on the finishing and polishing of the watch case and its effect on the public is also studied. Five quarter hours. Spring. Reynolds 67. Clock Metal Treating. The study of metal working and heat treating. Machining various metals used in clock making. Five quarter hours. Autumn, Winter, Spring. McCormac 68. Escapement Drawings. Supervised study of clock development. Escapements are drawn to scale and history of escapements are studied. Five quarter hours. Autumn, Winter, Spring. McCormac 69. Chimes and Unit Timing. A study of chimes mechanisms, unit timing and special problems. Five quarter hours. Autumn, Winter, Spring. McCormac 80. Historical Development. The development of intricate time pieces, and their technical requirements. Five quarter hours. Autumn, Winter, Spring. McCormac 81. Theory of Heat Treating and Hardening. A study in special heat treating and working hardening of miniature springs and fine parts. Five quarter hours. Autumn, Winter, Spring. McCormac 82. Gear and Cam Design. A course including gear design, practical problems and special use designs. Five quarter hours. Autumn, Winter, Spring. McCormac