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Start Over You searched for: Subjects Pollination Remove constraint Subjects: Pollination Subjects Diapause, Insect Remove constraint Subjects: Diapause, Insect

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1. Observations on the fertilization of yucca and on structural and anatomical peculiarities in Pronura and Prodoxus: The hibernation of aletia xylina (say), in the United States a settled fact ; Emulsions of petroleum and their value as insecticides