From the fame Way of Reasoning, I conclude, that we might inarch two Trees into one another, in fuch a manner, that where they had taken good hold of each other, the Root of one of them might be taken out of the Ground and rais'd to the Air, fo as to make one erect Tree. For Example, if we inlay an Elm into an Elm, as in Figure IV. when they are well join'd, take the Root of one of them out of the Earth, and tye it to a Póle or Stake, as in Fig. V. and I fuppofe it will have an extraordinary Effect; but I cannot yet determine its Success but by Reafon only; but though this has never been tried that I know of, yet I am not fo much sway'd by the Carrier's Rule, but that I may find out as good a Path for my Purpose as the common Road. If this fucceeds, as I doubt, not but it will, we shall not want room for Speculation, how far the Earth, or how much the Air influences a Plant: In Fig. V. from A. to B. I fuppofe from what I have obferv'd in Nature, that the Shoots 1, 2, 3, 4, 5, 6, will be gradually less than one another. As for Example, 1 the longest and thickeft, 2 a Size lefs than 1, 3 a Size lefs than 2, and fo on to B, where the two Trees are join'd; for as the Stem from A to B does naturally decline in its Bignefs, fo it does not poffefs fo many Veffels on the Top as at the Bottom.. And again, the Sap-Veffels near the Root are fooner and better furnish'd, than those that lie more remote from it. But when we come to the joining of the two Plants at B, and go up gradually to C, we fhall find juft the Reverse of what we observ'd before; the Branch 7, I fuppofe, will be the leaft, 8 bigger than 7, 9 bigger than 8, and fo on to the Part which acted before before as a Root. And again, that all the Branches from B to C will be oblig'd to turn up to the Air, though their Buds were revers'd; and fo it is as natural for me to fuppofe, that the Root D will fhoot out Branches and Leaves, as that in Fig. III. which we have already an Instance of in Holland. This laft Experiment has been try'd fince the firft Impreffion of this Work, and fucceeds very well. Catalogue of new Graffings Anno 1723, by Mr. Fairchild and Mr. Whitmill both ingenious Gardiners at Hoxton. Mr. Fairchild's are 1. The Terebinths upon the Piftachio. 2. The Cedar of New England upon the Virginian Cedar. 3. The Cedar of Libanus upon the Larix or Laret-tree, which is the more extraordinary, feeing the Cedar is evergreen, and the Larix drops its Leaves. 4. The Cafena's, one Sort upon another. 5. The Spanish Barba Jovis upon the commón fort. 6. The yellow Indian Jeffamine upon the English yellow Jeffamine. 7. The Oleanders upon one another, so that he has three or four Sorts upon one Plant. 8. Geranium with variegated Leaves, upon a Geranium with a fcarlet Flower, from whence it is reasonable to fuppofe, all the arborescent Kinds of Geraniums will take upon one another. 9. The Spurge Laurel upon the Mezereon, the firft ever-green, the other not; in January this. makes a pretty Shew, to fee the beautiful Blof foms of the Mezereon intermix'd with the variegated Leaves of the Spurge Laurel. 10. The Lilac upon the Perfian Fellamine; fo likewise the white, purple, and blue Lilacs may be graffed or budded upon one another.. 11. The Carolina Haw upon the common Hawthorn. 12. The Red Curran upon the Black Curran, but the Taste of neither Fruit is changed, nor any Property alter'd, no more than any other particular Fruit lofes its Properties by being engraffed upon a wild Stock. ran. 13. Curran upon the Goosberry-leav'd Cur 14. Live Oak of Virginia upon the common English Oak. 15. Ilex upon the common English Oak. 17. Cork-Tree upon the English Oak, and fo may be graffed all Kinds of Oaks upon one another. 18. The Anti-Euphorbium, upon the Senecio, Afric, Arborefc, &c. 19. The Variegated Tree Sedum upon the common Tree Sedum, and likewise several other kinds of Sedum upon the Tree Sedum. 20. Cotyledons of feveral Kinds upon the Tree Sedum. Graffings by Mr. Whitmill. 21. The Fig upon the Mulberry. 23. The 23. The Cock/pur Haw upon the double Blof fom Haw. 4 24. The Paffion Tree upon the Vine. 25. Myrtles upon one another, feveral forts. Befides thefe Graffings, which answer the End of propagating curious Plants with little Trouble, there is one Thing very remarkable which happen'd in Mr. Fairchild's Garden, from the budding or inoculating fome of the Paffiontree, whofe Leaves were fpotted with yellow, into one of that fort of Paffion-tree which bears the long Fruit ; now, though the Buds did not take, yet in a Fortnight's time after budding, the yellow Spots began to fhew themselves a bout three Foot above the Inoculation, and in a fhort time after that, the yellow Spots appeared on a Shoot which came out of the Ground from another part of the Plant. Is not this as plain a Proof of the Sap's Circulation, as the Inftance of the Jeffamine mention'd before, or the Inoculation of the Small-Pox, is an Inftance of the Circulation of the Blood? For my part, I can't fee how any Objection can be made against the many evident Proofs that have been given of it, as well in the cafe of reverfing of Plants, and rejuvenizing them, as in feveral others mention'd in my former Works; but indeed I am not infenfible that when I write, my Works fall into the Hands of two forts of People, the one, who, defiring to be inform'd, are curious and inquifitive, and would willingly learn; and the other, who finding themselves Men by the Number of their Years, are either VOL. II. K afham'd afham'd of asking Queftions, left they should feem ignorant, or elfe think that their Age is a fufficient Warrant for their Obftinacy, and talking of Nonsense. For the firft, I have that Generofity, that I fhall always, as far as my Time will permit, think my felf well employ'd in inftructing them; but for the latter who are fure they know enough already, and resolve against Improvement, they are only fit to accompany one another. But there is one Queftion which is a great ftumbling Block to those who are but beginners in the Knowledge of Circulation of Juices, and that is, how long Circulation is performing? (to use their own Terms) In anfwer to which, they muft understand that the Motion of the Juices is conftant, and that whatever impedes it, or quickens it beyond its conftant Course, tends to weaken the Plants, for the Secretions are not then rightly made; befides, the Motion of Juices is not in every Plant alike, in fome quicker, and in others flower, for the Circulation of Blood in one Animal, is not perform'd with the fame Rapidity, that it is in another, as we find by the Beats of the Pulfe; the Motion of the Pulfe of a Snail, or of its Heart, as one may obferve by taking off the Shell, is fix or feyen Times flower than the Beats of the Pulse in an human Body; and the Pulfe of an human Body is more than that flower than the Pulfe of a Squirrel, fuppofing all three to be in an equal State of Health. Now, as this Circulation muft be continual from the very firft of Life to the Moment of Death; fo we must confider too, that the Food or Nourishment receiv'd every Day, adds to the Juices that were in the Body before, which muft either encrease the Bulk of the |