It is not impossible to conceive how a sensible point of infmitely fluid matter pressed on evecy side receives an almost infinite number of different impressions at the same time, when attention is paid to two things: (a) that matter is infinitely divisible, and that the smallest sphere can correspond to all the parts of a large sphere; (b) that each part tends and moves in the direction in which it is less pressed, and that thus every soft and unequally compressed body receives all the traits of the mould, as it were, surrounding it, and receives them the more rapidly as it is more fluid and compressed.