That this is so might be thought to follow absolutely from each of the two facts which I have called and ); but I am not quite sure that it does follow from either of these or from both together: for it seems to me just possible that the two sensibles in question, though not circular in my private space, may yet be circular in physical space; and similarly that though the sensible of the half crown is smaller than that of the florin in my private space, it may be larger in physical space.