But though I could not with my _Microscope_, nor with my breath, nor any other way I have yet try’d, discover a passage out of one of those cavities into another, yet I cannot thence conclude, that therefore there are none such, by which the _Succus nutritius_, or appropriate juices of Vegetables, may pass through them; for, in several of those Vegetables, whil’st green, I have with my _Microscope_, plainly enough discover’d these Cells or Poles fill’d with juices, and by degrees sweating them out; as I have also observed in green Wood all those long _Microscopical_ pores which appear in Charcoal perfectly empty of any thing but Air. Now, though I have with great diligence endeavoured to find whether there be any such thing in those _Microscopical_ pores of Wood or Piths, as the _Valves_ in the heart, veins, and other passages of Animals, that open and give passage to the contain’d fluid juices one way, and shut themselves, and impede the passage of such liquors back again, yet have I not hitherto been able to say any thing positive in it; though, me thinks, it seems very probable, that Nature has in these passages, as well as in those of Animal bodies, very many appropriated Instruments and contrivances, whereby to bring her designs and end to pass, which ’tis not improbable, but that some diligent Observer, if help’d with better _Microscopes_, may in time detect. And that this may be so, seems with great probability to be argued from the strange _Phænomena_ of sensitive Plants, wherein Nature seems to perform several Animal actions with the same _Schematism_ or _Orginization_ that is common to all Vegetables, as may appear by some no less instructive then curious Observations that were made by divers Eminent Members of the _Royal Society_ on some of these kind of Plants, whereof an account was delivered in to them by the most Ingenious and Excellent _Physician_, Doctor _Clark_, which, having that liberty granted me by that most Illustrious Society, I have hereunto adjoyn’d. _Observations on the _Humble_ and _Sensible Plants_ in _M Chiffin’s_ Garden in Saint _James_’s Park, made _August_ the _9th, 1661_._ _Present, the_ Lord _Brouncker_, Sr. _Robert Moray_, Dr. _Wilkins_, Mr. _Evelin_, Dr. _Henshaw_, _and_ Dr. _Clark_. There are four Plants, two of which are little shrub Plants, with a little short stock, about an Inch above the ground, from whence are spread several sticky branches, round, streight, and smooth in the distances between the Sprouts, but just under the Sprouts there are two sharp thorny prickles, broad in the letting on, as in the Bramble, one just under the Sprout, the other on the opposite side of the branch.