ae as goa eee

ASA MANURE.‘567

is renewed. The foil that admits of this fingular mode of farming, appears to be a pure incoherent fand, deftitute of the {malleft particle of vegetable mould;—but, upon examination, it is found to confift almoft entirely of broken fhells: the fine mould here, bears fuch a fmall proportion to the calcareous matter, as to be fcarcely perceptible,—and yet it forms the moft fer- tile foil that ever I yet met with.

I have feen many other links(downs) upon the fea-fhore, which produced the moft luxuriant herbage, and the clofett and fweeteit pile of grafs, where they con-

fitted of thelly fand, which, without doubt,

derive their extraordinary fertility: from

that caufe.

A very remarkable plain is found in the ifland of Tir-eye or Tyre-ty, one of the Hebrides.—It has long been employed as acommon, fo that it has never been dif- turbed by the plough; and affords annu- ally the moft luxuriant crop of herbage, -confifting of white clover, and other va- luable pafture-graffes, that can be met with any where.—The foil confifts of a very pure fhelly fand. And the fineft crop of

Oo4 bear,