. A manual of dangerous insects likely to be introduced in the United States through importations. Dangerous Scale Insects. The mango scale {*Leucaspis indici), upper figures. The haekberry scale (*Lecaniodiaspis ceUidis),lower figures. (Original, Sasscer.) U. S. Dept. of Agriculture, Manual of Dangerous Insects. Plate

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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashingtongovtprin