British medical journal . ce. As the integumentsof the BhiHa are more or less soft and flexible, the greatinsect is at last forced into the gallery, where it nevercould have been expected to have entered. Such pro-ceedings on the part of the Chlorion almost verge uponthe domain of reason ; and it is difficult to explain themby the notion of that very indefinite quality called the mancouvres varj- according to circumstances, andthere appears to bo au intelligent method of overcomingevery difficulty. Apart from animals which eat it, there are a numberof parasites whicli infest it, b
British medical journal . ce. As the integumentsof the BhiHa are more or less soft and flexible, the greatinsect is at last forced into the gallery, where it nevercould have been expected to have entered. Such pro-ceedings on the part of the Chlorion almost verge uponthe domain of reason ; and it is difficult to explain themby the notion of that very indefinite quality called the mancouvres varj- according to circumstances, andthere appears to bo au intelligent method of overcomingevery difficulty. Apart from animals which eat it, there are a numberof parasites whicli infest it, beginning w-ith the parasiticbeetle Sijmbius , whose wingless females attachthemselves to the bodies of the cockroaches and feed upontheir tissues. Then occasionally a roimd-worm, Filariarhijliplcurites, whose sexual stage is passed iu the rat,is found in its larval stage iu the fat bodies of the cock-roach. Two years ago Dr. C. Conyers Morrell undertook someinvestigations and observations as to what part, if any,. ris. 3.—Egg capsule ot P. oi-teM*<iKs (magnified). 1, Externalview; B. opened ; c, end view. cockroaches played in the dissemination of pathogenicmicrobes, his object being, as he says, first to ascertainwhat bacUli belonging to the colon group are likelj- to beconveyed to food and milk by this insect, aud secondly tofind whether known bacteria aud moulds can be trans-mitted by the faeces. Dr. Conyers Morrells experhuentswere conducted on one of the Iuiou-Castle liners sailingto South Africa, and the insects which were investigated logS TiiE British JMeUicai- Jocesai, J TETANUS TEEATED BY INJECTIONS OF CARBOLIC ACID. [Dec. 26, 19T4 were collected only from tlie larder or passages adjacent tothe kitchens ; in no case were they taken from Invatoriesor Irom state-rooms. The general condition of the ship,•n-hich was almost new, was one of exceptional cleanliness,and thus afforded good conditions for the experiments. was of opinion that there was
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmedicine, bookyear185
