Society of Motion Picture Engineers : incorporation and by-laws (1927)

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752 Transactions of S.M.P.E., Vol XI, No. 32, 1927 Many micro-cinema records of growing nerves (axis cylinders) have been made. This was also a very difficult photographic problem. Another field where micro-cinema has proved an aid in research work is bacteriology. A film record was made in collaboration with Dr. J. Bronfenbrenner and his co-workers of the growth of a culture of Fig. 3 — Micro-Cinema Model 1923. Bacterium coli and its destruction by bacteriophage. In this study the disappearing of single cells could be observed. In colloid chemistry micro-cinema has been used for recording the so called Brownian movement of ultra -microscopic particles. The application of micro-cinema to examinations of the blood of patients will be explained later. The Micro-CinewM Apparatus The apparatus used for micro-cinema work is somewhat specialized for the different subjects to be taken, the principal parts being the mi<jroscope a with the source of light h and optical bench on one