No. 32. Screw Thread Cutting.—Lathe Change Gears; Thread Tools; Kinks.
No. 33. Systems and Practice of the Drafting-Room.
No. 34. Care and Repair of Dynamos and Motors.
No. 35. Tables and Formulas for Shop and Drafting-Room.—The Use of Formulas; Solution of Triangles; Strength of Materials; Gearing; Screw Threads; Tap Drills; Drill Sizes; Tapers; Keys, etc.
No. 36. Iron and Steel.—Principles of Manufacture and Treatment.
No. 37. Bevel Gearing.—Rules and Formulas; Examples of Calculation; Tooth Outlines; Strength and Durability; Design; Methods of Cutting Teeth.
No. 38. Out of print. See No. 98.
No. 39. Fans, Ventilation and Heating.—Fans; Heaters; Shop Heating.
No. 40. Fly-Wheels.—Their Purpose, Calculation and Design.
No. 41. Jigs and Fixtures, Part I.—Principles of Design; Drill Jig Bushings; Locating Points; Clamping Devices.