Charts illustrate incidence of flies to intestinal diseases and typhoid fever and their breeding places in the U.S.
United States USA Date:1924 Duration:2 min 46 sec Sound:NO SOUND
Animated diagrams show the fly as a disease carrier in the United States. Animated diagram based on statistics shows the relation of intestinal diseases to the prevalence of flies and depicts deaths from typhoid. Views of eggs of fly. They develop into hairless whitish larvae. While feeding on the manure in which they live the larvae gradually change into pupae. At the termination of the pupa stage the fly comes out of the pupa case.
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