Appl. author: Emerson Yorke.

4. Drilling and Tapping Cast Steel. © title, descr., & 2 prints, 17Dec41; MU11922.

5. Drilling to a Layout and Spotfacing Cast Iron. © title, descr., & 2 prints, 17Dec41; MU11923.

MACHINE SHOP WORK; operations on the engine lathe. sd. © Atlas Educational Film Co.

Appl. author: John G. Curtis.

8. Cutting an Internal Acme Thread. © title, descr., & 2 prints, 31Dec43; MU14348.

9. Cutting an Internal Taper Pipe Thread. © title, descr., & 2 prints, 13Mar44; MU14587.

10. Turning Work Held on a Fixture. © title, descr., & 2 prints, 13Mar44; MU14588.

11. Boring to Close Tolerances. © title, descr., & 2 prints, 13Mar44; MU14589.

12. Machining Work Held in a Chuck. © title, descr, & 2 prints, 13Mar44; MU14590.