First edition, 1918, has title: Motion picture projection. With this was consolidated in the fifth edition, 1933, Sound pictures and trouble shooters manual, by J. R. Cameron and J. F. Rider, the ...
https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!410430~!0#focus ...