of their natural figurative motions, and the composi∣on of their parts; Nevertheless I see no reason, why those Homogeneous bodies should be called simple, and all others mixt, or composed of them; much less why they should be principles of all other natural bodies; for they derive their origine from matter, as well as the rest; so that it is onely the different composure of their parts, that makes a difference between them, proceeding from the variety of self-motion, which is the cause of all dif∣ferent figures in nature; for as several work-men join in the building of one house, and several men in the fra∣ming of one Government; so do several parts in the ma∣king or forming of one composed figure.But they'l say, it is not the likeness of parts that makes the Four Elements to be principles of natural things; but because there are no natural bodies, besides the menti∣oned Elements that are not composed of them, as is evi∣dent in the dissolution of their parts; for example, A piece of Green wood that is burning in a Chimney, we may readily discern the Four Elements in its dissolution, out of which it is composed; for the fire discovers it self in the flame, the smoak turns into air, the water hisses and boils at the ends of the wood, and the ashes are nothing but the Element of earth: But if they have no better arguments to prove their principles, they shall not rea∣dily gain my consent; for I see no reason why wood should be composed of the Four Elements, because it burns, smoaks, hisses, and turns into ashes; Fire is none of its 0