expense of working it, and it is brought into a good 

 condition when it is required for planting; whereas, 

 otherwise, the season might have advanced so far that 

 the planting might have to be delayed longer than 

 is desirable this occurs frequently. 



A dressing of dung has a lasting effect on the land, 

 as neither the mechanical nor the manurial properties 

 are exhausted in one year. This, of course, is not 

 lost sight of by growers, particularly by those who 

 grow other special crops, though it is by no means 

 disregarded by those who grow ordinary coarse crops 

 after potatoes. 



The cost of dung as a manure is heavy in comparison 

 with that of those which exert their influence in one 

 year and are of little value afterwards. The greater 

 liability to disease which accompanies potatoes grown 

 on dung is another objection to its use. As a rule, 

 however, this special proneness to disease is shown 

 most strongly where the potato actually rests on the 

 dung, or the dung has been but recently applied. 

 The earliest experiments carried out with the view 

 of preventing disease showed that the dung increased 

 the liability and virulence of the attack. The re- 

 cently conducted experiments at Warminster support 

 this view, and general experience confirms them. 



The profitable use of dung in the place of artificial 

 manures must be considered from all points of view. 

 The cost, ease of application, less liability to cause 

 disease, and quickness of return are in favour of 

 artificial manures. The small cost of dung made on 



