Annals of medical history . hollow needlearmed with two lateral saws) and injects intothe wound a lethal fluid which may well belikened to the venom of a poisonous liquid poison softens the blood globules,brings about rupture of their coverings, dis-solves their solid constituents and facilitatesthe mixture of the coloring matter with theblood serum. Such action appears to be almostinstantaneous because, under the microscope,I have observed that the blood extractedthrough the proboscis of the mosquito isdevoid of corpuscles, this state of fluidityfacilitating its withdrawal by means
Annals of medical history . hollow needlearmed with two lateral saws) and injects intothe wound a lethal fluid which may well belikened to the venom of a poisonous liquid poison softens the blood globules,brings about rupture of their coverings, dis-solves their solid constituents and facilitatesthe mixture of the coloring matter with theblood serum. Such action appears to be almostinstantaneous because, under the microscope,I have observed that the blood extractedthrough the proboscis of the mosquito isdevoid of corpuscles, this state of fluidityfacilitating its withdrawal by means of thesucking apparatus of the insect. If after Inject-ing the poison the usual suction Is prevented orinterrupted the poison remains In the wound andsets up a more pronounced septic Inflammationthan when some of it has been allowed to beredrawn with the extracted blood. The localirritation was formerly explained by the break-ing of the mosquitos sting In the wound, but theinsect proboscis is an elastic, horny needle which. The Grave of Louis Daniel Beauperthuy in the Officers Cemetery, H. M. S. Penal Settlement, Mazar- UNi River, British Guiana after numerous observations I have never seenruptured in situ. . The carriers of infec-tion are of numerous species, and are by nomeans equally dangerous. The variety calledzancudo bobo, whose legs are striped with white, lyo Annals oj Medical History is the most common of the domestic mosquitoes;its bite is inoffensive as compared with that ofsome other insects. The puyon is the largestand the most vindictive. Its proboscis isbifurcated at the extremity and its bite infavorable cases, when the poison is not absorbed,merely makes a topical deposit resulting in apapuIe-Hke, purulent scabies, but which is notcontagious. Children are its chief victims. Theextent of the suppuration makes it difficult todecide whether or not the remains of an insectare to be found in the eruption. . Uponwhat do mosquitoes feed if not upon decayinganimal sub
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Keywords: ., bookauthorp, bookcentury1900, bookdecade1910, booksubjectmedicine
