. A practical study of malaria. Fig. 42.—Stomach of infected mosquito. with wire netting, one end of which has an opening protectedby a sleeve through which the arm may be introduced. Themosquitoes should be fed in twenty-four to forty-eight hoursafter hatching and thereafter every day for several days. In investigating the mosquito cycle of the parasite of mala-ria the sexual forms must be sought for in the midgut orstomach, and the sporozoits in the salivary glands. In the dissection of the midgut proceed as follows: Do not dissect the mosquito until the blood from the lastfeeding is digeste
. A practical study of malaria. Fig. 42.—Stomach of infected mosquito. with wire netting, one end of which has an opening protectedby a sleeve through which the arm may be introduced. Themosquitoes should be fed in twenty-four to forty-eight hoursafter hatching and thereafter every day for several days. In investigating the mosquito cycle of the parasite of mala-ria the sexual forms must be sought for in the midgut orstomach, and the sporozoits in the salivary glands. In the dissection of the midgut proceed as follows: Do not dissect the mosquito until the blood from the lastfeeding is digested, which may be ascertained by the disap-pearance of the dark color on the lower surface of the abdo-men. Kill the mosquito by means of cyanide fumes, chloroform,ether, or tobacco smoke. Pull off the wings and legs and remove the scales with asmall camels-hair brush. PLATE I. A miniature mosquito farm. ETIOLOGY III Place, with the ventral aspect up, in a drop of normal saltsolution upon a glass slide. Transfix the center of the thorax with a dissecting needle. Flatten the abdomen by gentle pressure of the other needle,and nick the intersegmental membrane on each side betweenthe second and third last segments.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmalaria, bookyear1909
