Is allowed, but in such cases thorough moulding, which 

 would stand washing by heavy rains, is not made, as 

 the potatoes are dug within a very short time, and all 

 that is attempted is to cover in the tubers, which do not 

 occupy so much space as in the case of the heavy main- 

 crop varieties. Heavy cropping maincrop varieties, 

 grown where very thorough moulding is required, are 

 planted in rows 30 or more inches apart. Such a 

 width is also allowed where land is foul, and an 

 attempt at cleaning the land is to be made whilst the 

 crop is growing, 



Width of Drills. 



Having marked out the land at the required width, 

 the distance at which the potatoes are to be planted 

 from each other along the rows has to be decided. 

 Many points have to be considered, and the width from 

 row to row has to be borne in mind. Strong growing 

 varieties require more space to develop in than do the 

 earlier varieties. At the same time very robust new 

 varieties, with a tendency to grow coarse tubers, have 

 to be regulated so that they produce a more market- 

 able sample, specially large potatoes being unsaleable 

 except to bakers of bread or those who sell baked 

 potatoes in public places. The size of the seed also 

 has an influence, as a bigger plant, or collection of 

 plants, may be expected from large-sized sets than from 

 small seed. Thus, a Variety which where sets of full- 

 seed size (rather bigger than a large duck's egg) would 

 be planted at distances of 14 or 15 inches apart, a 



