46 RELATION OF THE DISEASE TO INTERNAL CAUSES. 



Quantity. Bad. 



Mangel Worzel . 2 bush. 



Early Kidney ,,^ t . good crop 



Average in good year, 4 bushels per rood. 



(176.) Mr. Storr states that the " potatoe crop has 

 failed in the neighborhood of Howder, Yorkshire, very 

 seriously. The Scotch reds are much the worst. I 

 planted twenty tubs of them last spring, and have not more 

 than ten tubs fit for use from them, and this is the case all 

 through Marshland. The white ones are much better, 

 say about thirty tubs per acre fit for food ; but they are 

 very small, the haulm having been prematurely killed by 

 the disease." 



(177.) Mr. Latham, one of the great potatoe growers in 

 Yorkshire, says, that " Many expedients were resorted to 

 during the last winter, such as early planting and deep 

 planting; and in some cases the crop of 1845 was suffered 

 to remain in the ground, and the winter proving mild, no 

 serious consequences from frost took place. So far as my 

 observation extends, the early planted potatoes are the freest 

 from disease, the largest in size, and the best crop, but cer- 

 tainly not less than one-third was bad even in these. On 

 some of the best potatoe soils the crop, in many instances, 

 is a total failure. The quantity per acre will vary from 40 

 bushels to 100, but there are very few instances of the 

 latter quantity being obtained. It is perhaps worthy of 

 remark, that red potatoes were those most severely 

 affected in 1845, and white ones in the present year." 



(178.) From these facts we discover, that, although a 

 potatoe plant might become old and might die, death from 

 old age is not the cause of the present epidemic, and that 

 old and young, according to their deviation from the state 



