upper part of the head" (Volkelt, p. 39). "Several different symbols are used by the dream for the same organ, thus the breathing lungs find their symbol in an oven filled with flames and with a roaring draught, the heart in hollow chests and baskets, and the bladder in round, bag-shaped objects or anything else hollow. It is especially important that at the end of a dream the stimulating organ or its function be represented undisguised and usually on the dreamer's own body. Thus the 'toothache-dream' usually ends by the dreamer drawing a tooth from his own mouth" (p. 35). It cannot be said that this theory has found much favour with the authors. Above all, it seems extravagant; there has been no inclination even to discover the small amount of justification to which it may, in my opinion, lay claim. As may be seen, it leads to a revival of the dream interpretation by means of symbolism, which the ancients used, except that the source from which the interpretation is to be taken is limited to the human body. The lack of a technique of interpretation which is scientifically comprehensible must seriously limit the applicability of Scherner's theory. Arbitrariness in dream interpretation seems in no wise excluded, especially since a stimulus may be expressed by several representations in the content of the dream; thus Scherner's associate, Volkelt, has already found it impossible to confirm the representation of the body as a house. Another objection is that here again dream activity is attributed to the mind as a useless and aimless activity, since according to the theory in question the mind is content with forming phantasies about the stimulus with which it is concerned, without even remotely contemplating anything like a discharge of the stimulus.
But Scherner's theory of the symbolisation of bodily stimuli by the dream receives a heavy blow from another objection. These bodily stimuli are present at all times, and according to general assumption the mind is more accessible to them during sleep than in waking. It is thus incomprehensible why the mind does not dream continually throughout the night, and why it does not dream every night and about all the organs. If one attempts to avoid this objection by making the condition that especial stimuli must proceed from the eye, the ear, the teeth, the intestines in order to arouse dream activity, one is
