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Page 316
The association between parasite and host is often very specific ; thus the larvæ of some of the freshwater mussels become temporary parasites on particular species of fishes and on no others , and the larva of the liver - fluke does ...
The association between parasite and host is often very specific ; thus the larvæ of some of the freshwater mussels become temporary parasites on particular species of fishes and on no others , and the larva of the liver - fluke does ...
Page 317
... can offer no natural resistance , as when cattle enter the Tse - tse fly - belt and become infected with trypanosomes which are fatal to them , though doing little or no damage to the indigenous animals in which they are at home .
... can offer no natural resistance , as when cattle enter the Tse - tse fly - belt and become infected with trypanosomes which are fatal to them , though doing little or no damage to the indigenous animals in which they are at home .
Page 737
This is a protective provision of nature , so that whenever special attention is called to a part of the body , that region , by dilation of the capillaries through the vasomotor nerves , becomes ready to react without delay to any ...
This is a protective provision of nature , so that whenever special attention is called to a part of the body , that region , by dilation of the capillaries through the vasomotor nerves , becomes ready to react without delay to any ...
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Contents
The Harvard Peace Kite | 65 |
Imagination in | 128 |
The Uses of Mystery | 129 |
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