Having now, I think, gone thro’ what I propos’d to shew, and given a Reason, as far as my Conjecture reaches, for every _Phænomenon_ which I have seen or heard of in Electricity, I think it may not be improper to endeavour to proceed a little farther with it, and consider its Power as it stands in Nature. For, since the Antients have ever supposed some uniform compulsive Power, which they called the _Anima Mundi_, and which by these electrical Experiments seems to be Fire, I will endeavour to shew, that, in the Dispersion of it in common Nature, you may observe that some Plants abound with it, from the great Vigour they discover, compar’d with others in their own Tribe. Some are so, as being of a more verdant Nature than others are. Now, from this Consideration, I will venture to give a Reason for that which has hitherto puzzled every body that has thought about it, which is, Why the Sensitive Plant shrinks; and, from a turgid and vivid Appearance, it immediately becomes languid, and hangs its Leaves, on the Touch of any other Body or Thing. Now, from this my Conjecture on Electricity, if you will suppose with me, that as all Things, which stand in the common Nature of this lower World, have this Fire equally dispersed, and have more or less of it only as they are in this or that Place, where more or less of it is offer’d to be received by them, or as they are in their own Natures more capable of receiving more of it than others are, (as I think has been shewn by the electrical Experiments before-mention’d) and then likewise suppose the Nature of the Sensitive Plant is to have more of this Fire in it than there is in any other Plant or Thing, and it must, by the Nature of it, when any of them touches it, impart a great deal of its Fire into that Thing by which it is touched; because that had less of it than was in the Sensitive Plant. Therefore, till the Sensitive Plant has had Time to recover its Vigour, by receiving from the Air more of this Fire, its Leaves and Branches hang in a languid State, from the great Loss of its Spirit and Fire. To illustrate this, if you set any small Tree in a Pot upon a Cake of Resin, and then electrify the Tree, even tho’ it were a Willow, it would grow extremely turgid, so as to erect its Leaves to the great Wonder of the Beholder; and the Moment you touch even but one of its Leaves, the whole Tree becomes as languid as the Sensitive Plant would be, if touched by any Body or Thing.—This I think seems to me to give as great a Proof of the Truth of my Conjecture as the Nature of the Thing can admit of, respecting the Sensitive Plant. As I am upon the Subject of Vegetation, it may not be improper to offer somewhat concerning the Direction of the _Farina fecundans_, which is found in Plants and Flowers, to the _Matrix_ of that, or of a neighbouring Plant or Flower.