1806.] Critical Catalogue. 277 under the ſhades of trees or hedges, is removed towards the middle of the field, and allowed to lie open to the drought for a few hours, Tn this cheap and ſimplè manner, hay is bercer preſerved than by more operoſe methods.

«För 6 T TREEs.—Important inſtraKions, wich reſpei to the Kinds of trees adapted to the ſoil, bottom, and expo iure, intended toa be planted, may be obtained, by obſerving the different degrees of ſútcess attending thoſe trees in the numerous plantations ofi this varied county. Tc may not be improper, therefore; to inſert what occurs in diferent situations, reſpe@ing che different ſpecies uſually planted.

“ The Scots pine, or fir, as it js uſually called, is not adapted to, the greateſt altitudes. Tt begins to ſhoot in April, and completes its year's growth by the midâle of June; ſo that the winter often con- tinues to reign 1a the heights, where the ſan is not refleRed till the ſummer of the Pine be‘over. Unable to üruggle with 2 repetition of ſuch ſeaſons, it languiſhes and dies. Oft all the trees of this kind, planted at Leadhills ſomething more than forty years ago, and very carefully treated, only two or three remain, in a very ſickly ſtate. On a mooriſh hill in the ſame neighbourhood there is a plan- tation ſtanding 2 little higher, and the ſoil incomparably worſe. The frees are now about three or four feet high, and have already ceaſed to male farther progreſs., Beſides the great elevation, there is per- baps ſomething in the bottom injurious to this plantation.‘The Scots pine planted in much lower ſituations upon a dry fhivery whin rock, the parts of which are ſeparated by ochery fiſlures, ceaſes to vegetate in a few Years, though the thin ſoil on the ſurface be good. There is alſo a kind of 1a ninated clay, much diſpoſed to difolve with water, not favourable for this, nor any of the pine tribe. Tt ſucceeds very well, however, in molt parts of the clay ground in the Ccoumry, 1f care be taken io prevent ſagnant water. It does ex=- ceedingly well on land covering the free- ctone rock; but the bet timber’ is produced on hard dry gravelly ſoils.

“€ The Siberian Pine, the cedar oſ Lebannon, and ſome others of 2 ſimilar nature, have been introduced w l ſhort intervals of mild weather which happen in the beginning of thé ſpring, excite them to vegetäte too early, and th: next cold blat deſtroys the Young buds. The New England pine thrives, in 2 to- lerable ſoil, from twelve(0. twenty years, in proportion to the Expo ſure, after which ic generally begins to decay. The longeſt ſtandin and the largeſt, are on the low grounds near the houſe of Dalziel.

‘The fpruce is alſo’ unft to weather the ſtorm, on the greateſt heights. Tt ſucceeds on the hard dry rock, where the Scots pine dies, but frequently decays at the end of eighteen or twenty years, on fiff wet clay,‘Its moſt favourite ſoil is chat which is dry and

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“ The ſilver fir thrives in clay ſoils, where the ſpruce fails; nor ïs 1t averſe either to the hard rock or graveliy ſoil; but it makes no Progre(s on any ſoil that is Very poor. Unfortunately ic frequently ſufers ſeverely from the froſty mildews of hz ſpring, particularly In its youth, y