British medical journal . shade of vegetation, but frequently invades thenative huts. It is catholic in its taste and attacks mostmammals, and it has a de-cided preference for men. InUganda the natives frequentlydie from its bites—dying ofso-called tick fever. Imyself once assisted in identi-fying two ticks in the nymphstage taken in Cambridgefrom the ear of an Americanvisitor to this country whohad been camping out inArizona shortly before hisarrival. This tick turnedout to bo a species of OrniUiodorus megnini, which,as a rule, attacks the horse, the ass, and the oxabout the ears. But it freq
British medical journal . shade of vegetation, but frequently invades thenative huts. It is catholic in its taste and attacks mostmammals, and it has a de-cided preference for men. InUganda the natives frequentlydie from its bites—dying ofso-called tick fever. Imyself once assisted in identi-fying two ticks in the nymphstage taken in Cambridgefrom the ear of an Americanvisitor to this country whohad been camping out inArizona shortly before hisarrival. This tick turnedout to bo a species of OrniUiodorus megnini, which,as a rule, attacks the horse, the ass, and the oxabout the ears. But it frequently ? attacks man, andis well known in the United States, infesting the earsof children. An allied species, 0. turicata, proves fatalto fowls in the Southern States and in Mexico, and isvery harmful to human beings. The chief harm thatthese ticks do is to transmit protozoal diseases to manand other animals. A very few ticks are said to be pathogenetic, but byfar the greater part lay fertilized eggs, and laj them in. Iig. 5.— Ornithodorusmoubata. Female, gorged,seen in profile. Nov. 14, 1914] EPIDEMIC POLIOMYELITIS. rTnz BR!Ti3a Rt r Medicai. Joobxa^ J^
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmedicine, bookyear185
