THE POTATO 173 



preference should be given to *Langworthy.' 

 This variety is commonly cultivated in the potato- 

 growing districts of the east of Scotland, and relia- 

 ble seed is easily procurable. It does not yield so 

 heavily as ' Up-to-date, ' but is less liable to ordi- 

 nary potato disease, and the cooking quality is 

 much better, so that even in districts where wart 

 disease has not appeared it is a variety to be 

 recommended. It requires rather a long period of 

 growth, well-tilled soil, and a free use of manure. 

 Those who wish to grow it successfully should give 

 attention to the following points: 



"(1) Cultivate the land deeply: shallow soils 

 should be subsoiled, or in the case of gardens, 

 trenched to a depth of jBfteen inches. 



"(2) Apply dung liberally. In the case of 

 fields, fifteen to twenty tons per acre, and supple- 

 ment this dressing with a mixed artificial manure. 



"(3) Sprout the tubers before planting, and 

 plant early. 



"Sulphur suitable for the purposes indicated 

 above should be procurable at from 9s. ($2.25), to 

 lis. ($2.75), per cwt., or Is. 3d (31 cents), to Is. 

 6d. (37 cents), per stone (fourteen pounds). Sul- 

 phur has been recommended because, of many 

 remedies tried for dressing soil during the growing 

 season, it seems to be the best. It occasionally 

 does good, especially in light soils, but it cannot be 

 relied upon to protect potatoes planted in badly 

 affected soils. Its good effect seems to be en- 

 hanced by using black sulphur and mixing it with 

 an equal quantity of quicklime. 



"Wart Disease (Synchytrium endobioticum) , is 

 scheduled as a notifiable disease under the Destruc- 

 tive Insects and Pests Acts, 1877 and 1907, and 

 occupiers of land on which the disease occurs must 



