title: Time-Lapse Motion Picture Technique Applied to the Study of Geological Processes.
abstract: Light-weight, battery-operated timers were built and coupled to 16-mm motion-picture cameras having apertures controlled by photoelectric cells. The cameras were placed adjacent to Emmons Glacier on Mount Rainier. The film obtained confirms the view that exterior time-lapse photography can be applied to the study of slow-acting geologic processes.
authors.forename: R D
authors.initials: RD
authors.lastname: Miller
authors.forename: D R
authors.initials: DR
authors.lastname: Crandell