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culture, in which is shown the difference of crops grown on the 
Flemish system compared with those of the raagnesian limestone 
of Doncaster, and the manures expended, — equal to twice 
the quantity of roots and green crops, and one-third more of 
grain, and that by manures collected and made on the farm. 
Urine would be peculiarly adapted to the soils on the 
Wolds, in that it binds light and deaf soils, and renders them 
more consistent; while dung, bones, and rape dust, on the 
contrary, render them still lighter. Upon this subject I 
will only add from Sprengel, " Whoever mixes no water 
with the urine, or who fails also to employ some neutraliz- 
" ing substance to combine with the ammonia which is pro- 
" duced in so great a degree during summer, suffers a loss 
of manure which exceeds all belief. It is only a gaseous 
" substance, and not a solid material visible to the naked 
" eye, which thus escapes and is lost ; but for all that, it is 
" of greater importance to the nourishment of plants than 
" perhaps any other portion of the excrements." 
III. The state of Agriculture as at present existing upon 
these soils, and some suggestions for its improvement. 
1. That upon the Wolds. The mode of cultivation upon 
the wold district, has already been given in detail in the 
Society's reports, by Mr. Legard, on a farm at Neswick, 
near Driffield ; and also by Mr. Howard, in the Farmers' 
Series, upon the farm of Mr. Watson, at Wauldby. The 
rotation usually pursued is that of the alternate or four- 
course, viz : — 
1. Turnips 
2. Barley 
3. Red Clover, or white clover seeds, 
with grasses 
4. Wheat 
Mr. Legard states, " that the corn crops may be permitted 
" to follow in the same rotation, but that the green or alter- 
