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Show VE VE VE In the Water, which is at laft thick and turbid, was.a green Subftance, refembling a fine thin Conferva. > The Plant {I} was as kindly as the former but had thot no collateral Branches: Its Roots, the Waters, and the green Subftance, all much as in the former, where they ftood from June 2, to Fuly 28, juit 56 Days. The Plant H wasall along a very kindly one, and run upabout two Feet in Height, Ithad fhot bur.eneconfiderable.callateral Branch, but had fentforth many andlong Roots; fromwhich {prung-very numerous, though fmall and fhort The Plant K, thoughit hadthe Misfor tune lefler Fibres. The leffer Roots came out of the larger on two oppofite Sides forthe moft to be annoy’d with very fmall Infeds that part; fo that each Root, with its Pijrille appears not unlike a fmall Feather. To thefé happen’d to fix upon it, yet had thot very con- adheredpretty much terrefirial Matter: many Roots as either H or I, which had a fiderable collateral Branches, and at leaft as of the Plant} V Veightgain’d by the What ofthe Water Proportion of Inut of]Plant when it had is expended uponthe creafe ofthe Plant to the Expence ofthe ftood 56 Days. Plant. H Hyde Park Conduit. Water Grains. 128 Grains. 127 Grains. The 110 Grains, 249 Grains, Jame Water 139 Grains. The fame Water, with an Ounce and half of common 76 Grains. 244 Grai 168 Grains. alone. 14190 Grains. ast to TIO +119 Fz alone, 13140 Grains, Garden a5 1 tog4 01k Earth difflved init. 10731 Grains. as i 1063 144 VE Ounce of good Garden Mould, and a Dram of Mire; and in a third, half an Ounce of NVood-afhes, and a Dram of Mitre: But the Plants ia thefe fucceeded no better than the former. In other Glaffes, he diflolv’d feveral other Sorts of Earth, Clay, Marles, andvariety of Manures, &c. and he fer Mint in diftill’d Mint-Water, and made other Experiments of feveral kinds, in order to get a Light andInformation whathaftened or retarded, promoted or impeded Vegetation. The Glafs P Hyde Park Conduit-Water. In this he fix’d a Glafs Tube ten Inches long, the Bore one-fixth of an Inch diameter, fill’d with very fine and white Sand, which he kept from 92 Grains, with the, fame Quantity 376 Grains. 284 Grains. Garden Mould as 14950 Grains. the former, G51 10 52 182 735 114 Grains, 155 Grains. Inconvenience and Annoyance to thofe who firft fettled in America; which at that Time was Over-grown with Woods and Groves : But as thefe were burnt down and dettroy ’d, to make Way for Habitations and Culture of the Earth, the Air mending, changed into a Temperature more ferene and dry than Tube: And in the Phyal, it had precipitated a greenifh Sediment, mix’d with Black. To the Bottom andSides of the Tube, as far as it was immers’d in the Water, adhered pretty much ofthe green Subftance defcrib’d above. Tubes he All’d with Cotton, Lint, and feveral other porous vegetable Sub 3 fetting fome of themin clear “Water, others in Water tinged with Saffron, made, in order to give a mechanical Reprefentation of the Motion, and Diftributien of the Juices in Plants, and of fome other Pheno- mena obfervable in Vegetation. Several Plants being alfo fet in the Phyals 8803 Grains. 29 as 1 to 2144 7? N The Refidue of the Water which remained in the Still after that in M 81 Grains. 175 Grains. 94 Grains. much greater Quantity of terreftrial Matter adhering to the Extremities of them. The fame en Subftance here that was in the two preceding. The Plant L was far more flourifhing than anyof the preceding, had feveral confiderable collateral Branches and very numerous Roots, to which terreftrial Matter adhered very copioufly. The Earth in both thefe Glaffes was very fenfibly and confiderably wafted, and lefs than when firft put in. The fame Sort of green Subftance here as in thofe above. 3 The Plant M was pretty kindly; had two {mall collateral Branches, and feveral Roots, though not fo manyas thofe in H or 1; but as 4344 Grains. was difill’doff. did the Water afcend nigh the Quantity it did in the hotter Seafons, in which the before-cited Trials were made. The Refult of all which Experiments, he gives us in the following Obfervations and Reflections. as to 46 I. In Plants of the fame kind, the lefs they are in Bulk, the fmaller Quantity of the fluid much ¢erreftrial Matter adhering to them 4s 3, thofe had: The Water was pretty thick, having very numerous fmall ¢erreftrial Particles fwimming in it, and fome Sediment at the Bottomof the Glafs. This Glafs had none o! the green Matter above-mention’d init. p in j which they are fet, is drawn off; the @ the Mafi is of equal Thick- pretty nearly proportion’d to the Bulk of the Plant. In effeét, the Water feems to afcend up the The Plant N was very lively, and hadfent Veffels of the Plants, in much the fame manner out fix collateral Branches, and many Roots asup a Filtre ; and it is not to be wonder’dat, but the Water was very turbid, andas high- colouredas ordinary Beer. ; The Glafs O had‘ alfo Hyde Park Con Water, in which was diffolv’d a Dramof N The Mint fet in this, f{uddenly began to wi and decay, and died in a few Days; as! wife did two more Sprigs that were fe fucceflively. In another Glafs, he dific manner as the reft, did temain at the End of the Experiment as at firft, and without any Diminution of Water; and that the greatei t Part of it flies off from the Plant into the Atmofphere, is as certain, The leaft Proportion of the Water expended, was to the Augment ofthe Plant, as 46 or so to the Sand quite to the very Top of the .R.S. &c. order’d in like manner as thofe AI Grains. Is certain ; fince fome Glaffes which had no Plants in them, though difpos’d in the like free. above in Oéfober, and the following colder Months; thefe throve not near fo much, nor gentle Still. That the Water in thefe Experiments, afcended only through the Veffels of the Plants, to the Toptill the very laft. The Water had imparted a green Tin@ture M Fyde Park Water diftill’d with their Pores, and exhales up into the Almofp falling downout of the Tube into the Phyal, by tying a fine Piece ofSilk over that End of to 13 and infome 100,200 in 1, as 700to 1. the Tube that was downwards. Upon ImmerThusfo continual an Emiffion of Water, in fion of the lower End of it into the Water, fo great Plenty from the Parts of the Plant, this bylittle and little afcendedquite upto the affords a manifeft Reafon, why Countries that Orifice of the Tube; and yet in all the 56 Days abound with Trees andthe larger Vegetables that ic ftood thus, a very inconfiderable Quan- efpecially, fhould be very obnoxious to Damps , tity of Water had gone off, viz. fcarcely 20 great Humidity in the Air, and more frequen t Grains, though the Sand continued moift up Rains than others that are more Open and 7], &c. and feveral other Trials were Hyde Park Water, Il. Much the greater Part ofthe fluid Maj; thus drawn off, and convey'd into the P. does not fettle or abide there, but paffes. thy The great Moifture of the Air was a great before. Nor does this Humidity go off pure and alone, but ufually carries with it many Parts of the fame Nature with thofe whereof the Plant confifts: The Craffer, indeed, are not fo eafily borne up into the Atmofphere, but are ufually depofited on the Surface of the Leaves, Flowers, andother Parts of the Plants ; whence proceed our Manna’s, our Hor y’s, and other gummous Exudations of Vegetables: But the finer and lighter Parts are with greater Eafe fent up into the Atmofphere ; thence they are convey’d to our Organs of Smelling, by the Air we drawin Refpiration ; and arepleafanc or offenfive, beneficent or injurious to us, according to the Nature of the Plants from whencethey arife. And fince thefe owe their Rife to the Water that afcends out of the Earth through the Bodies ofPlants, we cannot be far to feek for the Caufe why they are more numerous in the Air, anda greater Quar of Odoursis found exhaling from Vegetable warm, humid Seafons than in any other. Ill. A great Part ofthe T that is mix’d with Water Plant, as well as the Water. that the larger Filtre fhould draw off more Waterthan the fmaller; or that a Plant that hath more or larger Veffels, fhould take up a There was much more terreftrial Matter at the End of the Experiment, in the Water of the Glaffes that had no Plants in them, than in thofe that had Plants. The Garden Mould greater Part of the Fluidin which it is fet, than diffolved in fome of the Glaffes was confide- one that has fewer can: Nor is it thus noted as a thing very confiderable in it felf, but rably diminifh’d and carry’d off ; nay, the terreftrial and vegetable Matter was borne up in the Tubes fill’d with Sand, Cotton, €c. in iefly with regard to what follows. that |
