A General Treatise of

Sap ; these I have only observ’d at Mr. Warn-er's at Rjotberhith, and am petsuaded they areof extraordinary Use for bringing a Tree tobear.

2. I do not think that leaving only the ho-rizontal Shoots of a Tree, can any way put astop to the Luxuriance of it ; but the bend-ing or laying down of upright' Branches hori-zontally, checks the Sap, by stopping its Coursethro' many of the Vessels, and helps, the pithyParts to digest their Juices so as to produceFlower Buds; for all Buds of a. Tree are ei-ther Leaf Buds, or Flower Buds, as the Pithis more watry or undigested, or more dry andtending to decline.

The Pith in one Year’s Shoot is abundantand watry.

The Pith in a Shoot of two Years is less inquantity, and more dry.

'■ The Pith in a three Year’s Shoot is hardlyto be difcern’d •, and in older Branches is ofho Use, and entirely confum’d or rotted.

Now, where this Pith is overcharg’d withWater, we seldom observe any Disposition toflower ; or if the Tree blossom, the .Farinawhich should impregnate those Blossoms, is sounripe that they very rarely set for Fruit.

Z. There are some Soils which encourageTrees to shoot large luxuriant Roots, whichimbibe so much Water, that the Shoots whichanswer them in the Head of the Tree, are o-vercharg’d with Sap ; and in such Cafe.eitherthose Roots should be pruned, or some waste.Branches or Pipes should be left growing to;discharge those watry Parts, as in Mr. Warner's- - Trees.

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