. The American entomologist and botanist. the character ofthe gall-maker has not jet been determined. AFrench naturalist has, however, detected mitesin them, and we have little doubt but the gallsare caused by these mites, for mite-galls ofsomewhat similar form, are common in manyparts of this country on the Plum and Cherry,and we shall take occasion, ere long to describeand figure them. THE PARASITES OP THE HUMAN ANIMAL,/• Tlie Itch Mite. V (Actirus scahiei, Liiui.) [ In the flttli number of our First Volume, wegave, under the above caption, an account ofthe eight true insects that are parasi
. The American entomologist and botanist. the character ofthe gall-maker has not jet been determined. AFrench naturalist has, however, detected mitesin them, and we have little doubt but the gallsare caused by these mites, for mite-galls ofsomewhat similar form, are common in manyparts of this country on the Plum and Cherry,and we shall take occasion, ere long to describeand figure them. THE PARASITES OP THE HUMAN ANIMAL,/• Tlie Itch Mite. V (Actirus scahiei, Liiui.) [ In the flttli number of our First Volume, wegave, under the above caption, an account ofthe eight true insects that are parasitic on man,and briefly referred to some other ringed ani-mals, not classed with the true insects, whichalso prey upon him. Among these last is thecommon Itch Mite, a microscopic creaturewhich causes that cutaneous disease—the com-mon Itch. We find such an interesting accountof this parasite, by B. Joy Jeffries, A. M.,M. D., of Boston, in the January number ofG^ood Health, that we transmit the article toour columns.—Eu.] [Fig. 77.]. Color— chapter is headed by a magnified diaw-ing of the little animal we are to is about one-sixtieth to one-seventieth of aninch iu length, just visible to the naked eye. Byliving in the skin of man it produces the diseaseknown as ilcJi. To understand how to ti-eatthis troublesome affection iutcUigibly, we mustfirst study the natural history of the animal, itshabits and habitats. Before doing this, how-ever, it will be interesting and instructive toglauce at the general liistory of this little crea- ture, called in English the Jtch-mite, and inLatin, Sarcopten hominis, or Acarus is strong evidence in support of theidea that some of the diseases spokeu of iu theBible as prevalent among the Jews were, in re-ality, due to the ravages of the Itch-mite iu theskin. Probably, when mankind began to peo-ple the world, these insects began to peoplethem, derived, by contagion, from the loweranimals previously iu ex
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