pathway of its least and most individual property it is the same throughout the whole of nature a phenomenon originated anywhere is carried round the universe by a through its by a plant through its by an through its sensibility by a muscle through its specific by a common nerve through its sensitive or quality by an nerve through its capacity for sight and so forth an nerve indeed when subjected to the action of fire or is but it is by no means as an nerve that it is so affected it is as a given compound of such and such elements that it is burned so long as it is an nerve properly so called and to the extent in which it is an nerve and no other in existence it only sees fire or else flashes fire in such circumstances it follows therefore from all these considerations that if there were two mouths for example in one every taste perceived at one of them would be handed over as such to the other always supposing for the present that there were nothing to set bounds to the practical working of the law of sympathetic sensation there is a very significant thing connected with this conception of a man with two mouths deserving to be indicated and remembered with more than ordinary care the half written page is before my eye of white light rush from all its surface except where the black ink has fallen to the outside of my an image of the manuscript is painted on that expanded sheet of nerve and the writing is seen we know not how all that can be said in the matter according to the of after thought is this that such an image on the of a healthy eye is invariably followed by the perception of the thing that is but since the nerve and since the brain are essential to a healthy eye it is perhaps not easy to resist the supposition that the image of the is to somewhere that it meets the mind hence the theory of sensation so long cherished with some by the scotch and hence also the and other forms of which the doctrine of into as soon as the scientific public would suffer the play of hamlet to be performed before them without the prince for our own part we are clearly of opinion that if the matter is to be considered from this external point of view at all the the of is very good so long as it is confined to sensations and remembered sensations including of course whatever may accompany pure emotions and ideas the word however must always be understood to be no more than an sign upon these conditions and from this point of view it is not only but correct to assert that the perception of any object over against the eye is produced in so far as the physical of the process is concerned by a movement begun at the external surface of the and from without when on the other hand i remember or conceive of the paper i have over with mv pen the movement essential to the conception of the writing is not begun at the outside of the but somewhere else no matter where and it is from within the written page of memory is the reverse of that of perception that is in respect it is more speaking than that which is under the very eye in fever and activity or insanity of the organ the feeble image from within in the act of memory becomes so forcible as to the nature of an immediate image and there is developed the phenomenon of illusion with these subjects however we have nothing to do at present except in so far as the following queer consideration is concerned if the indulgent reader will bring our two headed monster before his mind s eye again ho will at once observe that the movement corresponding with the taste of anything begun at one of its mouths and from without will be carried from within to the other it will reach the secondary like the memory of a taste shadowy and ghost like always supposing that not to be so sensitive as to convert the remembrance of a sensation into a illusion iii the individuality of man as an animal shape is produced and sustained by those overflowing currents of of which he is the subject he is isolated from and within that world of external appearances of which he is the centre to the truth of appearance if not according to the truth of reality by sensation but it is not by the sensations produced in him by stars or sea and land or heat and cold or flowers and fragrance or the persons of friends and lovers were there no other sensations than these he could not them from his animal self they would all be parts the of of and the whole of nature were his body on that supposition it is his sensation of himself by his sensation of his sensations that he is out from the rest of nature and walks abroad as the of animals est iv not all sensations are perceived it is more exact to say that not all causes or usual of perceptible sensation are actually felt as sensations that is perceived one sensation so to speak another one is to another sensations are of one another then the perceiving mind can bend its attention in only one direction at one and the same time absorbed in the contemplation of a problem is deaf to the of a successful siege blind to his in flames and he might have died under the sword of the soldier who surprised him in study without a pang it is on these two accounts that sensation is limited m fact and man is v the last observation is vastly 