FOR THE PUPIL
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incisor teeth: the four long front teeth of the rodents,—rats, mice, beavers, etc. These incisor teeth, are heavily enameled with a sharp cutting edge and keep growing continuously.
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voles: meadow mice.
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chimney swallows: more properly swifts; as these birds do not belong to the swallow family at all.
vermin: The swifts are generally infested with vermin.
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clapper rails: or marsh-hens (Rallus crepitans).
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