1805.] Qu Spanish Slreep. 75 done in Six hours, tbe rate will be nearly one mile four fur- longs, five-tenths per bour.

IF the breadth of the furrow Slice be zize inches, the team will travel 18,240 yards, or, one mile two furlongs, four-teaths, ;ifrihe work be dope in eight hours; if in Six hours, the rate will be nearly ove mile five furlongs, eight-tenths per hour.

[ii tbe furrow Slice 15 only eight inches, the horses wl travel 21,760 yards, which, if performed in eight hours, is nearly one mile four furlongs, nine-tenths per hour; iC in SIX DOurS, one mile seven furlongs, eight-tenths per bour.

There 15 a variance of opinion about the proper angle of re- version of the furrows by the plough; in Some parts of En- gland, the farmers wish the furrows to be turned nearly Bat; in Scotland, the farmers dislike them to be turnedy as they term it, too much on their back.

The anvexed engraving Shews what is deemed, in Scotland, as the best form, Size, and degree of reversioD of the fürrows by the plough. It was communicated to Mr. Erskine, by the very celebrated Andrew Coventry, M. D. protessor of agri- culture in the univeräity of Edinburgh.

N. B. The Scots rood or rod, is nearly equal to three rods

and thirty-two poles of English Statute measure«. meme am eIEEIIE RI nn nn MR. BARTLEY ON TURNIPS AND POTATOES, AND ON SPANISH SHEEP. To the Editor of the Agricultural Magazine. SIR,

SEIZE the earliest opportunity of paying attentive respect

to the letter of your correspondent, 4. N. No. 72, p. 18,304 56 far from feeling any thing of a“peppery" nature, excited by the difference of opinion expressed by him, on the compa- rative value of the potatoe and the turnip, 1 rejoice in the cir- cumstance.( conceive the question to be of Signal import- ance, that the turnip culture in Northumberland, has nearly attained to ultimate perfection; namely, in r0ws with three feet interval, and that the discussion on the part of A. N. will be ably aud temperately managed; in Short, 1 conszider the Practice adopted in the cultivation of the turnip in that county, as a public model for the guidance of others; and 1am willing 10 allow, for[ frmly believe, that by their practice, they. 95- tain many tons weigbt per acre, more than are obtained, I will not s3y by the Slovenly and preposterous cus20M, wnaich Still exists on a large Scale of instances, of sowing two or Lhree pounds ot Seed broadcast, per acre, to Seek its good fortune in all weathers, without a Single Stroke of Subsequent culture, but even by the much better mode of S0wing broadcast, with