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Graham-Smith, G. S., Fantham, H. B., Porter, Annie, Bulumo, u „ ('•. \\\. 

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MOLITOR-MiJHLFELD. 



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1917. Sacbrood. U. S. Dept. Agr. Bui. 431. (Contribution from the Bu- 

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1918. Nosema disease. U. S. Dept. Agr. Bui. — . (Contribution from the 

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