Practical cinematography and its applications (1913)

Page scan 000207 from Practical cinematography and its applications

Record Details:

Title:
Practical cinematography and its applications
Date:
1913
Publisher:
Philadelphia, Lippincott
Volume:
Practical cinematography and its applications
Leaf #:
000207
Language:
English
Collection:
Books
Format:
Books
Contributor:
Gerstein - University of Toronto
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
14
Date Added:
July 19, 2022
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156 PRACTICAL CINEMATOGRAPHY The photographic speed was varied according to the character of the investigation and the subject. Thus, in recording the digestion in the stomach and intestine of the trout, an exposure was made every twenty seconds. In the case of the toad the speed was one in every ten seconds, while the chicken required one in every five. One of the most novel experiments which Monsieur Carvallo carried out in this particular field was to ascertain the extent to which diges- tion will continue in the intestine after it is removed from the animal. The digestive tube of the frog was selected for this novel investiga- tion and the photographs taken at the rate of one per second illustrate the fact that the digestive organ will continue its functions long after its removal from the body. Since the year 1900 when Monsieur Carvallo carried out his scientific researches with the Rontgen rays, radiographic science has made great strides. Researches of this character no longer require elaborate and expensive apparatus. This has been shown by Dr. J. Comandon, the well-known French scientist, who, at the labora- tories of Messrs. Path£ Fr&res, has prepared some magnificent X-ray films in such a manner as to make them interesting to the average patron of the picture palace. Dr. Comandon possesses the unique ability of so treating his