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XL] infected, and after many meals of banana, they could still be found coiled up in the head or stretched out in the labium. Probably heat and moisture play a part in this respect, as has been shown to be the case by Fülleborn.

Fig. 107.—F. bancrofti in head and proboscis of mosquito.

These observations prove that, like the malaria parasite, the filaria is introduced into its human