_This Specimen_ had several _Buds_ upon it, when first set in the Water. _These_ in some Days became fair _Flowers_, which were at length succeeded by _Berries_. (E.) _Lathyris seu Cataputia Gerh._ _Spring-Water._ It weigh'd, when put in, Gr. 98. when taken forth, Gr. 101½. The additional weight for the whole 77 Days, being but Gr. 3½. The Quantity of Water spent upon it during that time, Gr. 2501. which is 714-4/7 times as much as the Plant was augmented. _Several _other Plants_ were try'd, that did _not thrive_ in _Water_, or succeed any better than the _Cataputia_ foregoing:_ _But 'tis besides my purpose to give a particular _Account_ of them here._ (F, G.) _These Two Vials_ were fill'd, the former (F) with _Rain_, the other with _Spring-water_, at the same time as those above-mention'd were; and stood as long as they did. But they had neither of them any Plant; my Design in these being only to inform my self, whether any Water exhaled out of the Glasses, otherwise than _thorow_ the Bodies of the Plants. The Orifices of these two Glasses were cover'd with Parchment; each piece of it being perforated with an hole of the same bigness with those of the Vials above. In this I suspended a bit of Stick, about the thickness of the Stem of one of the aforesaid Plants, but not reaching down to the Surface of the included Water. I put them in thus, that the Water in these might not have more Scope to evaporate than that in the other Vials. Thus they stood the whole 77 Days in the same Window with the rest; when, upon Examination, I found none of the Water in these wasted or gone off. Tho' I observed both in these, and the rest, especially after hot Weather, small Drops of Water, not unlike Dew, adhering to the Insides of the Glasses, that Part of them, I mean, that was above the Surface of the enclosed Water. The Water in these two Glasses that had no Plants in them, at the end of the Experiment, exhibited a larger Quantity of Terrestrial Matter than that in any of those that had the Plants in them did. The Sediment at the bottom of the Vials was greater; and the _Nubeculæ_, diffus'd through the Body of the Water, thicker. And of that which was in the others, some of it proceeded from certain small Leaves that had fallen from that part of the Stems of the Plants that was within the Water, wherein they rotted and dissolved. The Terrestrial Matter in the Rain-water was finer than that in the Spring-water. _Anno 1692._ The Glasses made use of in this, were of the same sort with those in the former Experiment; and cover'd over with Parchment in like manner. The Plants here were all _Spear-Mint_; the most kindly, fresh, sprightly Shoots I could chuse. The Water, and the Plants were weigh'd as above; and the Vials set in a Line, in a South Window: where they stood from _June_ the 2d to _July_ 28. which was just 56 Days.