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The avocado in Guatemala
Legal phases of cooperative associations
Farm mortgage loans by banks, insurance companies, and other agencies
Citrus melanose and its control
Rayless goldenrod (Aplopappus heterophyllus) as a poisonous plant
Industrial fumigation against insects
The Central American species of Quercus
The domestic cat; bird killer, mouser and destroyer of wild life; means of utilizing and controlling it
Report on the field work against the gipsy moth and the brown-tail moth
Desiderata of the herbarium for North America, north of Mexico