606 Cultivation of Arable Land.—Potatoes.

ever, feems to recommend well-rotted horfe-dung, though the long dung is no- ticed as being the next in value*. The nature of the foil in which this was the cafe is not diftin&ly mentioned; it was probably of the fandy kind, in which there can be little doubt but that horfe-dung, in a highly reduced ftate, would be of the moft benefit, as a larger proportion of carbonaceous earthy matter would thereby be immediately provided for the growth of the crop, and the ground be more preferved from becoming too dry, light, or porous.

The dung of hogs has alfo been found, by the experiments of the fame cul- tivators, to be nearly equal to that of the horfe, in raifing crops of this highly valuable root.

When this fort of crop is cultivated on the ftiff and more heavy defcriptions

In Lancafhire, Mr. Townley, on comparing different defcriptions of manures, found that

Manures. Produce. No. 1. Coal afhes only,: A: 3 produced 2rrlb., rather fmall. 2. Stable dung and coal afhes mixed 5:- 344, very fine. 3. Stable dung alone: 3 5:. 315, ditto. 4. No manure::= 5 134, very{mall. 5. Compoft, dung lime, and foil c: 204, middling. 6. Stable dung covered with common yellow mafs 3 438, remarkably fine. 7. Soaper’s wafte° 2 3: 383, very fine. 8. Stable dung and lime a e s 268, tolerable. 9. Lime alone i°°.° 5 187, ditto. 10. Coal afhes and lime:. 5: 19, ditto. x1, Stable dung and foaper’s wafte 3:. 298, very good. 12. Soot, foil, and coal afhes 5-:. 271, ditto. 13. Salt and foil:.::. 200, ditto. 14. Saw-duft and coal afhes 2‘: 190,{maller. 15. Stable dung and faw-duft::> 307, very fine. 16. Dung of poultry and coal afhes::- 236, pretty fine, 17. Dung of poultry and fand.:;. 156, rather{mall. 18. Saw-duft and lime: 3*-: 197, ditto. 19. Decayed rufhes and lime R s 3< 208, very good, 20. Tanner’s bark and lime*; F 76, very poor. 21. Bark and ftable dung 4°:° 141, rather larger, 22. Bark alone 5-. 35» very poor. 23. Stable dung and lime fpread over the land C: 230, pretty fine. 24- Chopped whins, witha covering of limeoverthen. 256, very fine.

In thefe trials the manure was placed in furrows of five-feet lands.

* Billingfly’s Report of Somerfetthire; and Wimpey, in Bath Papers, vol.