criminal psychology-第52章
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he hunting boots of the parson。 The mixed odors of apple； straw and boots constituted a unique and long unsmelled perfume which had sunk deep into my memory。 And as I passed a room which contained the same elements of odor； all those things that were associated with that odor at the time I first smelt it； immediately recurred。
Everybody experiences such associations in great number； and in examinations a little trouble will bring them up； especially when the question deals with remote events； and a witness tells about some ‘‘accidental'' idea of his。 If the accident is considered to be an association and studied in the light of a memory of odor； one may often succeed in finding the right clew and making progress。
But accurate as the sense of smell is； it receives as a rule little consideration； and when some question concerning smell is put the answer is generally negative。 Yet in no case may a matter be so easily determined as in this one； one may without making even the slightest suggestion； succeed in getting the witness to confess that he had smelled something。 Incidentally； one may succeed in awakening such impressions as have not quite crossed the threshold of consciousness； or have been subdued and diverted。 Suppose； e。 g。； that a witness has smelled fire； but inasmuch as he was otherwise engaged was not fully conscious of it or did not quite notice it； or explained it to himself as some kitchen odor or the odor of a bad cigar。 Such perceptions are later forgotten； but with proper questioning are faithfully and completely brought to memory。
Obviously much depends on whether anybody likes certain delicate odors or not。 As a rule it may be held that a delicate sense of smell is frequently associated with nervousness。 Again； people with broad nostrils and well developed foreheads； who keep their mouths closed most of the time； have certainly a delicate sense of smell。 People of lymphatic nature； with veiled unclear voices； do not have a keen sense of smell； and still duller is that of snufflers and habitual smokers。 Up to a certain degree； practice may do much； but too much of it dulls the sense of smell。 Butchers； tobacconists； perfumers； not only fail to perceive the odors which dominate their shops； their sense of smell has been dulled； anyway。 On the other hand； those who have to make delicate distinctions by means of their sense； like apothecaries； tea dealers； brewers； wine tasters； etc。 achieve great skill。 I remember that one time when I had in court to deal almost exclusively with gypsies； I could immediately smell whether any gypsies had been brought there during the night。
Very nervous persons develop a delicateness and acuteness of smell which other persons do not even imagine。 Now we have no real knowledge of how odors arise。 That they are not the results of the radiation of very tiny parts is shown by the fact that certain bodies smell though they are known not to give off particles。 Zinc； for example； and such things as copper； sulphur； and iron； have individual odors； the latter； particularly when it is kept polished by a great deal of friction；e。g。； in the cases of chains； key…rings kept in the pocket。
In defining the impressions of smell great difficulties occur。 Even normal individuals often have a passionate love for odors that are either indifferent or disgusting to others （rotten apples； wet sponges； cow…dung； and the odor of a horse…stable； garlic； assafoetida； very ripe game； etc。）。 The same individual finds the odor of food beautiful when hungry； pleasant when full…fed； and unendurable when he has migraine。 It would be necessary to make an accurate description of these differences and all their accompanying circumstances。 With regard to sex； the sense of smell； according to Lombroso；＇1＇ is twice as fine in men as in women。 This is verified by Lombroso's pupils Ottolenghi and Sicard； Roncoroni and Francis Galton。 Experience of daily life does not confirm this； though many smokers among men rarely possess acute sense of smell； and this raises the percentage considerably in favor of women。
＇1＇ C。 Lombroso and G。 Ferrero。 The Female Offender。
Section 43。 （f） The Sense of Touch。
I combine； for the sake of simplicity； the senses of location； pressure； temperature； etc。； under the general expression： sense of touch。 The problem this sense raises is no light one because many witnesses tell of perceptions made in the dark or when they were otherwise unable to see； and because much is perceived by means of this sense in assaults； wounds； and other contacts。 In most cases such witnesses have been unable to regard the touched parts of their bodies； so that we have to depend upon this touch…sense alone。 Full certainty is possible only when sight and touch have worked together and rectified one another。 It has been shown that the conception of the third dimension can not be obtained through the sense of sight。 At the beginning we owe the perception of this dimension only to touch and later on to experience and habit。 The truth of this statement is confirmed by the reports of persons who； born blind； have gained sight。 Some were unable to distinguish by means of mere sight a silver pencil…holder from a large key。 They could only tell them to be different things； and recognized their nature only after they had felt them。 On the other hand； the deceptive possibilities in touch are seen in the well…known mistakes to which one is subjected in blind touching。 At the same time practice leads to considerable accuracy in touch and on many occasions the sense is trusted more than sighte。 g。； whenever we test the delicacy of an object with our finger…tips。 The fineness of paper； leather； the smoothness of a surface； the presence of points； are always tested with the fingers。 So that if a witness assures us that this or that was very smooth； or that this surface was very raw； we must regularly ask him whether he had tested the quality by touching it with his fingers； and we are certain only if he says yes。 Whoever has to depend much on the sense of touch increases its field of perception； as we know from the delicacy of the sense in blind people。 The statements of the blind concerning their contact sensations may be believed even when they seem improbable； there are blind persons who may feel the very color of fabrics； because the various pigments and their medium give a different surface… quality to the cloth they color。
In another direction； again； it is the deaf who have especial power。 So； we are assured by Abercrombie that in his medical practice he had frequently observed how deaf people will perceive the roll of an approaching wagon； or the approach of a person； long before people with good hearing do so。 For a long time I owned an Angora which； like all Angoras； was completely deaf； and her deafness had been tested by physicians。 Nevertheless； if the animal was dozing somewhere and anybody came near it； she would immediately notice his steps； and would distinguish them； for she would jump up frightened； if the newcomer was unknown； and would stretch herself with pleasure in the expectation of petting if she felt a friend coming。 She would sense the lightest touch on the object she occupied； bench； window…seat； sofa； etc。； and she was especially sensitive to very light scratching of the object。 Such sensitivity is duplicated frequently in persons who are hard of hearing； and whom； therefore； we are likely to doubt。
The sense of touch is； moreover； improved not only by practice； but also by the training of the muscles。 Stricker asserts that he has frequently noticed that the observational capacity of individuals who make much use of their muscles is greater than among persons whose habits are sedentary。 This does not contradict the truth established by many experiments that the educated man is more sensitive in all directions than the uneducated。 Again； women have a better developed sense of touch than men； the space…sense and the pressure…sense being equivalent in both sexes。 On these special forms of the touch…sense injections of various kinds have decided influence。 The injection of morphine； e。 g。； reduces the space…sense in the skin。 _Cannabinum tannicum_ reduces sensibility and alcohol is swift and considerable in its effects。 According to Reichenbach some sensitives are extreme in their feeling。 The best of them notice immediately the approach and relative position of people； or the presence of another in a dark room。 That very nervous people frequently feel air pressure； fine vibrations； etc。； is perfectly true。 And this and other facts show the great variety of touch impressions that may be distinguished。 The sense of temperature has a comparatively high development； and more so in women than in men。 At the lips and with the tips of the fingers； differences of two…tenths of a degree are perceived。 But where an absolute valuation and not a difference is to be perceived； the mean variation； generally； is not much less than 4 degrees。 E。 g。； a temperature of 19 degrees R。 will be estimated at from 17 to 21 degrees。 I believe； however； that the estimation of very common temperatures must be accepted as correct。 E。 g。； anybody accustomed to have his room in winter 14 degrees R。 will immediately notice； and correctly estimate； the rise or fall of one degree。 Again； anybody who takes cold baths in summer will observe a change of one degree in temperature。 It will； therefore； be possible to believe the pronouncements of witnesses concerning a narrow range of temperatures； but all the conditions of perception must be noted for the differences are extreme。 It has been shown； e。 g。； that the whole hand finds water of 29 degrees R。 warmer than water of 32 degrees R。 which is merely tested with the finger。 Further； Weber points out；＇1＇ ‘‘If we put two adjacent fingers into two different warm fluids the sensations flow together in such a way that it is difficult to distinguish differences。 But if we use two hands in this test； it is especially successful when we change the hands from one fluid to another。 The closer the points on the skin which receive contemporary impressions and perhaps； the closer the portions of the brain to which these impressions are sent； the more easily these sensations flow together while again； the further they are from one another the less frequently does this occur。'' In the practice of criminal law such matters will rarely arise； but estimations of temperature are frequently required and their reliability must be established。
＇1＇ E。 H。 Weber： Die Lehre vom Tastsinn u。 Gemeingefhl。 Braunschweig 1851。
It is important to know what a wounded man and his enemy feel in the first instant of the crime and in what degree their testimonies are reliable。 First of all； we have to thank the excellent observations of Weber； for the knowledge that we find it very difficult to discover with closed eyes the angle made by a dagger thrust against the body。 It is equally difficult to determine the direction from which a push or blow has come。 On the other hand we can tell very accurately in what direction a handful of hair is pulled。
With regard to the time it takes to feel contact and pain； it is asserted that a short powerful blow on a corn
