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FOOTNOTES FROM 



destroyed and rotten. The disease still spreads its 

 ravages, until ultimately it reaches the tubers, the sub- 

 stance of which, when affected, speedily turns brown, 

 emits a very peculiar and unpleasant odour, and soon 

 decays to a fetid watery matter. The filaments of the 

 fungus are frequently seen ramifying through their cel- 

 lular tissue. No certain preventive of this destructive 

 murrain has yet been discovered, notwithstanding the 

 many plans proposed, which fail as often as they succeed. 

 The cause, though still in operation, however, seems of 



FIG. 40. OIDIUM TCCKERI. 

 (a) Natural size. (l>) Magnified. 



late years to have somewhat abated in virulence, so that 

 there is yet some chance of again rearing successfully 

 this most useful and important esculent. A somewhat 

 similar disease, it may be added, affects beet-root, spinach, 

 peas, and other garden vegetables. 



There is a peculiar disease which has of late years 

 proved most destructive to the vine on the Continent, 

 produced by the attack of a minute fungus, called the 

 grape oidium (Oidium Tuckeri, Fig. 40). It affects the 

 leaves and stem indiscriminately ; but its favourite 



