Further reports (no. 3) on flies as carriers of infection.

Date:
1910
Catalogue details

Licence: Public Domain Mark

Credit: Further reports (no. 3) on flies as carriers of infection. Source: Wellcome Collection.

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    Fic. 5.—Photograph of a longitudinal section of a fly (x 18). 1, oesophagus passing through the cephalic ganglion ; 2, the oesophagus entering the proventriculus ; 3, the proventriculus ; 4, the ventriculus ; and 5, the crop duct. Fie. 6.—Photograph of a longitudinal section of the head and anterior portion of the thorax (x 20). 1, pharynx; 2, oesophagus, showing its passage through the cephalic ganglion, and the bend after it emerges from the pharynx ; 3, oesophagus entering the proventriculus ; 4, proventriculus ; 5, common salivary duct. | (The dorsal region of the oesophagus in the neck has been accidentally ruptured.) Fie. 7.—Photograph showing the proventriculus in longitudinal section ( x 50).
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