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— Calico or Mosaic Disease of Cucumber and Melon. (Massachusetts Agric 

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— Eel Worms on Lettuce (Heterodera radicicola [Greef], Mull). (Massachusetts 

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— Influence of Water on Eel Worms (Heterodera radicicola [Greef], Miillj. 

 (Massachusetts Agric. Exp. Stat. XXI Annual Report [1909], p. 56—57.) 



— Celery Crown Rot. (Massachusetts Agric. Exp. Stat. XXI Annual Report 

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— A Disease of the Radish. (Massachusetts Agric. Exp. Stat. XXI Annual 

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— Onion Smut. (Massachusetts Agric. Exp. Stat. XXI Annual Report [1909] 

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— Onion Rot, (Massachusetts Agric. Exp. Stat. XXI Annual Report [1909], 

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— Crown Gall. (Massachusetts Agric. Exp. Stat. XXI Annual Report [1909], 

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— Bacterial Rot of Cabbage and Cauliflower. (Massachusetts Agric. Exp. 

 Stat. XXI Annual Report [1909], p. 43.) 



— Examination of Onion Seeds for P'ungous Spores. (Massachusetts Agric. 

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Stopes. Manie C. On the True Nature of the Cretaceous Plant Ophioglossum 



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 Stonmer, K. Richtlinien zur natiirlichen Bekampfung von Pflanzenkrankheiten. 



(Sitzber. u. Abh. Kgl. Sachs. Ges. Bot. u. Gartenbau Dresden XV [1911], p. 65 



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 Stormer, K. und Morgenthaler, O. Das Auftreten der Blattrollkrankhcit der 



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 Swingle, D. B. and Morris, H. E. A prehminary report on the effects of 



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 Taubenhaus, J.J, A contribution to- our knowledge of the nnorphology and 



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