Page:Mosquitoes, gnats, craneflies, midges and flies of the northern states (IA mosquitoesgnatsc00knobe).pdf/3

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Mosquitoes, Gnats, Craneflies,

MIDGES AND FLIES

OF THE NORTHERN STATES

By EDWARD KNOBEL

BOSTON:

rui-.LiSHEi)

nv

ISRADLEK

WHIDUEX

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