210 TEXT-BOOK OF FUNGI 



Frank, Kampfbuch, gegen die Schddlinge unserer Feld- 

 friichte, Berlin (1897). 



Freeman, Minnesota Plant Diseases, Saint Paul, Minne- 

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Godoelst, Les champignons parasites de Vhomme et des 

 animaux domestiques, Bruxelles (1902). 



Hartig, Lehrbuch der Pflanzenkrankheiten, Berlin (1900). 



Hartig and Somerville, Text-Book of Diseases of Trees 

 (Engl. ed.), London (1894). 



Ideta, Lehrbuch der Pflanzenkrankhelten in Japan, Tokio 

 (1903). (Text in Japanese.) 



Kiister, Pathologische Pflanzenanatomie, Jena (1903). 



Massee, A Text- Book of Plant Diseases, caused by Crypto- 

 gamic Parasites, ed. 2, London (1903). 



Maurizio, ' Die Pilzkrankheit der Fische und der 

 Fischeier,' Zeitschr. fur Fischerei u. deren Hilfswissensch., 

 6 (1895). 



Prillieux, Maladies des Plantes agricoles, et des arbres 

 fruitiers et forestiers, causees par des parasites vegetaux. 

 2 vols. Paris (1895). 



Sorauer, Schutz der Obstbdume, Stuttgart (1900). 



Ward, Timber and some of its Diseases, London (1889). 

 Disease in Plants, London (1901). 



THE SPREAD OF DISEASE BY MEANS OF 

 HYBERNATING MYCELIUM 



Until recently it has been assumed that the great bulk 

 of disease caused by fungi was due to the infection of the 

 host-plant by means of spores. This idea to a great extent 

 is quite correct ; nevertheless recent research has demon- 



