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The Hop Plant Louse, Plate III, Report of the Commissioner of Agriculture, US Dept of Agriculture, Illustration, 1888
GLS18A25_197

The Hop Plant Louse, Plate III, Report of the Comm...

The Hop Plant Louse, Plate II, Report of the Commissioner of Agriculture, US Dept of Agriculture, Illustration, 1888
GLS18A25_196

The Hop Plant Louse, Plate II, Report of the Commi...

The Hop Plant Louse, Plate IV, Report of the Commissioner of Agriculture, US Dept of Agriculture, Illustration, 1888
GLS18A25_198

The Hop Plant Louse, Plate IV, Report of the Commi...