. Digest of comments on The pharmacopia of the United States of America and on the National formulary ... 1905-1922. atly enlarged. ( After Schulthess [copied from , 1888a, p. 755, llg. 370].) 24 LIFE HISTORY OF AGCHYLOSTOMA DUODENALE OR UNCINARIA DUODENALIS. The eggs (fig. L6) are laid in the intestinal tract of the patient bythe female worms and are discharged in the feces, either unsegmented or during the early stages of seg-mentation. They will not developinto adult worms in the intestine,but must first pass out of the , for eveiy adult hookwormpresent in the bowels a s
. Digest of comments on The pharmacopia of the United States of America and on the National formulary ... 1905-1922. atly enlarged. ( After Schulthess [copied from , 1888a, p. 755, llg. 370].) 24 LIFE HISTORY OF AGCHYLOSTOMA DUODENALE OR UNCINARIA DUODENALIS. The eggs (fig. L6) are laid in the intestinal tract of the patient bythe female worms and are discharged in the feces, either unsegmented or during the early stages of seg-mentation. They will not developinto adult worms in the intestine,but must first pass out of the , for eveiy adult hookwormpresent in the bowels a separategerm must enter the body. The egg has a thin shell, which isan indication of a simple, life short time after escaping in thefeces—the time varying accordingto temperature, moisture, and posi-tion in the feces—each egg devel-ops (figs. 17-27) a minute embryo,which is known as a rhabditiformembryo (tig. 27). This name is givento it because of its resemblance toworms of the genus Rhahditis. Characteristic for this stage is therhabditiform esophagus, which is entirely different from the esophagus. Fig. 16.—Eggs of Old World hookworms(Agchylostoma duodenale) as found in thestools. Greatly enlarged. (After Stiles,1902b, i». 193, fig.
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