According to the above statement, an acre of land, the distance from lime 20 miles, limed at the rate of 30 bolls shells per acre, will cost

An acre with salt, 60 bushels, (the same dis

tance,

Difference

L. 12 13 0

4 7 6

L.8 5 6

Whether the salt will last as long on the ground as lime, is a point not yet ascertained,

II.-Report of Experiments with Rock-Salt as a Manure, upon the farm of Barnyards of Dalgety, Parish of Turriff, and county of Aberdeen, occupied by THRIFT SCOTT.

1819, April 1.-21 acres one year old grass, sown at the rate of 16 bushels per acre; 2 acres of ditto sown at 20 bushels per acre; th acre of ditto, at 30 bushels per acre; 1 acre of two year-old ley, at 22 bushels; acre sown grass, at 20 bushels per acre. The soil upon which the above proportions of salt were applied, is a deep rich black loam, upon a clay bottom,

April 22.-2 acres after turnip sown with barley and grass seeds, the salt sown at the same time with the grass-seeds, at 15 bushels per acre; 1 acre after turnip sown with oats, at 12 bushels; 4th acre planted with potatoes, the salt put in the drill with the dung, at 18 bushels per acre: soil a thin light

gravel: 4th acre six year old ley, at 20 bushels per acre; strong clay soil..

November 1.-1 acre of wheat, at 30 bushels per acre.

March 1. 1820.-acre of ditto, 28 bushels per acre; light clay soil.

Upon all these different soils and proportions of salt applied, no superiority whatever in the crops could be observed over those which got no salt. In autumn 1819, the two and three year old ley was ploughed for oats, and that crop this year, 1820, has derived no advantage from the salt application, neither has any of the other crops up to this time, (December 1820). On the morning after the salt was sown upon the grass-lands, there was a pretty hard frost, and the fields were slightly covered with snow. Where the salt was sprinkled, the grass was quite green, and the frost seemed to have had no effect.

66

Fyvie, 6th December 1820.-I hereby certify, that Thrift Scott, tenant in Barnyards of Dalgety, is known to me as a man of honour and respectability, and I have therefore no doubt, that the several matters above detailed are strictly correct *.

"JAMES HAY, J. P.

"And Member of the Highland Society."

Mr Scott made oath to the truth of the facts stated in his report; and the excellency of his general character was further

III.-Report of Experiments with Salt as a Manure; by Mr PETER CHRISTIAN. Addressed to the Secretary to the Society.

MILL OF FOREST, near STONEHAVEN,

6th November 1821.

SIR,-Having observed in the list of premiums, to be given by the Highland Society of Scotland in the present year, one offered to the person "who shall make and report to the Society the best and most satisfactory experiments on the effects of salt as a manure in general," I beg leave to acquaint you, for the information of the Society, that I procured from Liverpool a quantity of refuse-salt mixed with ashes, in the proportion of three parts of the former to one of the latter, with which the following experiments have been made by me on this farm.

certified by the Reverend Mr Moyes of Forglen, also a Member of the Society; and a certificate was produced to shew that Mr Scott had bought the salt with which the experiments were made. There is still, however, this important omission, that the lands salted were not inspected by practical men during the growth of the crops; nor does it appear that either measure or weight was used to ascertain the relative produce of the land subjected to the experiment, and of the rest of the fields.-ED.

I.-On a field of Potatoes, planted in drills, after Oats, following one year's grass, which had been laid down with Barley after Turnips fully dunged and limed; the soil a deep sandy loam.

The land having received the necessary ploughings and harrowings, and being cleared of weeds, 60 falls were divided into four equal plots for the sake of varying the application of the salt.

Plot 1st having been drilled, salt was carefully scattered between the drills, at the rate of 32 bushels of the mixture to an acre; the potato sets were then planted in the intervals, and covered by splitting the drills.

On plot 2d, salt, at the rate of 16 bushels of the mixture per acre, was sown on the surface; after which the land was drilled and dunged in the intervals, at the rate of 14 tons of the best farm-yard dung per acre; and the potato-sets being then planted on the dung were covered as above.

Plot 3d having been drilled and manured with farm-yard dung, laid in the intervals at the same rate, salt in the proportion of 16 bushels of the mixture to an acre, was carefully sown on the dung, and the potato sets were deposited and covered.

Plot 4th having been drilled and dunged in the same manner and proportion, and the potato-sets planted and covered in the usual way, salt was sown on the surface of the covered drills, at the rate of 16 bushels of the mixture to an acre.

These operations were executed on the 2d of May,

and the rest of the field was planted the same day; farm-yard dung having been applied in the drills in the proportion already mentioned.

In plot 4th, the plants appeared above ground about a week earlier than those of the same kind of potato for which dung only was used, and the stems maintained a visible superiority of luxuriance during the season until they began to fade, in which they had a priority even greater than in springing. In plot 3d, the stems were later in appearing than those of the same potato to which dung alone was applied. In plot 2d, the plants were still longer in appearing than in the 3d; while in plot 1st, they were so backward that it was for some time apprchended the crop would entirely fail. At length, however, all the sets appeared to have sprung in all the divisions. In plot 1st, the stems were all along much stunted. Neither in the 2d nor 3d plots did they ever assume so much luxuriance as in the adjoining parts of the field where salt was not applied, and in all these three they were completely withered before the others had begun to decay. The four plots were drill-harrowed, hand-hoed, and earthed up along with the rest of the field. Plot 4th afterwards continued tolerably free from surface weeds. Plots 2d and 3d were but in a slight degree infested with them. But the drills in plot 1st were before harvest excessively over-run with grass and chickweed.

On the 27th of October, the produce of 12 square yards of each plot was ascertained by weight, and