Hookworm disease : etiology, pathology, diagnosis, prognosis, prophylaxis, and treatment / by George Dock and Charles C. Bass. Illustrated with forty-nine special engravings and colored plate.

  • Dock, George, 1860-1951.
Date:
1910
Catalogue details

Licence: Public Domain Mark

Credit: Hookworm disease : etiology, pathology, diagnosis, prognosis, prophylaxis, and treatment / by George Dock and Charles C. Bass. Illustrated with forty-nine special engravings and colored plate. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    black, and tliat the parasites occurred especially in cach- ectic, emaciated persons, ultimately dying from diarrhea and dropsy. The late discovery of the worms he attributed to the failure of earlier observers to examine the intestinal mucosa without washing the adherent mucus away with water. He described the parasites accurately as small, bent, partly transparent in the fore part, partly yellowish, reddish, or brown worms, with a dark elevated point in the middle, and the stomach filled with black material. He gave a clear description and pictures of the microscopic features, especially the rounded mouth with four curved booklets rising from conical elevations, the flask-shaped esophagus, the blunt tail of the female, the fan-like tail of the male inclosing the genitalia. He proposed the name agchylostoma—from ay/Mo^^ bent, and Troim, mouth. The other details do not seem necessary to cite now.^ Though Dubini thought he had discovered a new worm, he had been anticipated to a certain extent. In 1782 Goeze discovered some worms in the intestine of a badger (Meles taxus). Although he gave it the name ascaris criniformis (on account of its hair-shape), he suspected it belonged to a different genus from the ordinary ascaris. He saw the membranous expansion of the tail of the male, and in it two rib-like structures, which he called hooks. In 1789 Frolich found similar worms in the intestines of foxes. He also observed the membranous expansion and hooks, and proposed the name hookworm (Haakenwurm) or uncinaria for the genus. The fact that other members of the family strongylidse possess similar ''hooks in the bursa does not interfere with the retention of the name. Dubini, besides describing the caudal hooks, noted the hook-like teeth and the bent shape of the body. As Stiles 1 Dubini was ill advised in the construction of the new word. In trans- lating from the Greek he should have changed the v to n and the k to c for Italian usage. In other languages the < would be c, ch, or k.