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Keywords from Image Description:
Marvels of insect life . By Thco Curreras The Fly thai causes Pellagra According to Dr iniboii the disease pellagra is spread by small black fly whose lifchistorv is here shown The eggs are laid in streams and the grnbs that liatch from them have the ren'iarkable form shown at the bottom of the picture Thcv are attached by their