. The external and internal parasites of [man and] domestic animals. PARASITES OP ANIMALS. Fig. 3. ment, which appear at first in the form oflittle sacks containing fluid, but finally ex-pand into broad membranes and the sidesof the sack unite so as to appear like asimple membrane, supported by littlebranching, hollow rods, or tubes, whichcommunicate with the cavity of the body,and also form the joints of the wings. Thelegs and jaws originate from the lower partof the sides of each ring that bears suchappendages, so that there must be as many rings or segmentsin any part of the body as there a
. The external and internal parasites of [man and] domestic animals. PARASITES OP ANIMALS. Fig. 3. ment, which appear at first in the form oflittle sacks containing fluid, but finally ex-pand into broad membranes and the sidesof the sack unite so as to appear like asimple membrane, supported by littlebranching, hollow rods, or tubes, whichcommunicate with the cavity of the body,and also form the joints of the wings. Thelegs and jaws originate from the lower partof the sides of each ring that bears suchappendages, so that there must be as many rings or segmentsin any part of the body as there are pairs of such organs, but Fig. 4.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectparasit, bookyear1870
