There is, however, no need to go so far afield in order to illustrate the primitive use of red ochre. Our own European ancestors followed exactly the same methods, and the German woman of early ages used red and yellow ochre to adorn her face and body, while the finds of the ice age at Schussenquelle, described by Fraas, included a brilliant red paste (oxide of iron with reindeer fat) evidently intended for purposes of adornment. Moreover, the early artists of classic times had precisely the same predilections in color as the aboriginal Australian artists. Red, white, black and yellow are the dominant colors in the Iliad, and Pliny mentions that the most ancient pictures were painted in various reds, while at a later date red and yellow predominated. He also mentions that yellow was the favorite color of women for garments, and was specially used at marriages, while red being a sacred color and apt to provoke joy, was used at popular festivals, in the form of minium and cinnabar, to smear the statues of Jupiter.

This well-nigh universal recognition of the peculiarly intense emotional tone of red is reflected in language. The color words of civilized and uncivilized peoples have been investigated with interesting and on the whole remarkably harmonious results. It is only necessary here to refer to them briefly in so far as they are related to our present subject. It seems that in every country the words for the colors at the red end of the spectrum are of earlier appearance, more definite and more numerous, than for those at the violet end. On the Niger it appears that there are only three color words, red, white and black, and everything that is not white or black is called red. The careful investigation of the natives of Torres Straits and New Guinea by Dr. W. H. R. Rivers, of the Cambridge Anthropological Expedition, has shown that at Murray Island, Mabuiag and Kiwai there were definite names for red, less definite for yellow, still less so for green, while any definite name for blue could not be found. In this way as we pass from the colors of long wave-length towards those of short wave-length we find the color nomenclature becoming regularly less definite. In Kiwai and Murray Island the same word was applied to blue and black, and at Mabuiag there was a word (for sea-color) which could be applied either to blue or green, while Australian natives from Fitzroy River seemed limited to words for red, white and black. In a neighboring region of Northern Queensland Dr. Walter Roth has reached almost identical results, the tribes having distinct names for red and yellow, as applied to ochre, while blue is confounded in nomenclature with black. In Brazil, again, while all tribes use separate words for red, yellow, white and black, only one had a word for blue and green. Even so æsthetic a people as the Japanese have no general words for either blue or green, and apply the same color word to a green tree and the unclouded sky.

Here again we may trace similar phenomena in Europe; the same greater primitiveness, precision and copiousness of the color vocabulary at the long wave end of the spectrum are found among Europeans as well as among the lowest savages. The vagueness of the Greek color vocabulary, especially at the violet end of the spectrum, has led to much controversy. Latin was especially rich in synonyms for red and yellow, very poor in synonyms for green and blue. The Latin tongue had even to borrow a word for blue from Teutonic speech; caeruleus originally meant dark. Even in the second century A. D. Aulus Gellius, who knew seven synonyms for red and yellow, scarcely mentions green and blue. Magnus has pointed out that a preference for the colors at the violet end of the spectrum coincided with the spread of Christianity, to which we owe it, he believes, that yellow ceased to be popular and was treated with opprobrium.[F] Modern English bears witness that our ancestors, like the Homeric poets, resembled the Australian aborigines in identifying the color of the short wave end of the spectrum with entire absence of color, for ‘blue’ and ‘black’ appear to be etymologically the same word.

[F] In this connection I may mention that the preference for green, which, as I have shown elsewhere (“The Color Sense in Literature,” Contemporary Review, May, 1896), developed in English literature with the rise of Puritanism in the seventeenth century.

At this point we come across an interesting and once warmly debated question. It was maintained some twenty years ago by writers who had been impressed by the defectiveness of the color vocabulary at the short wave-length end of the spectrum, that primitive man generally, and early Hellenic man in particular, were insensitive to the colors at that end of the spectrum, and unable to distinguish them. On investigation of individuals belonging to savage races it appeared, however, that no marked inferiority in color discrimination could be demonstrated. Hence it became clear that the vague and defective vocabulary for blue and green must be due to some other cause than vague and defective perception, and that sensation and nomenclature were not sufficiently parallel to enable us to argue from one to the other.

That, in the main, is a conclusion which still holds good. In all parts of the world it has been found that color discrimination, even amongst the lowest savages, is far more accurate than color nomenclature. Thus of an African Bantu tribe, the Mang’anja, Miss Werner states that they can discriminate all varieties of blue in beads, but call them all black. The sky is black; so is any green, brown or grey article, though a very bright grey counts as white. Violet or purple is black. Yellow is either red or white. A word supposed sometimes to mean green really means raw, unripe or even wet. Thus the Mang’anja only have three colors—black, white and red. In quite a different region, the Zulus, more advanced in color nomenclature, have not only black, white and red, but a word which may mean either green or blue, and another which means yellow, buff or grey, or some shade of brown. At the same time it now appears that the earlier scientific writers on this subject were not entirely wrong in stating that among savages there is some actual failure of perception at the short wave end of the spectrum, although they were wrong in arguing that it was necessarily involved in the defects of color vocabulary, and in imagining that it could be as extensive as that hypothesis demanded. It now appears that the conclusions reached by Hugo Magnus of Breslau, as expressed in 1883 in his study ‘Ueber Ethnologische Untersuchungen des Farbensinnes,’ fairly answer to the facts. In large measure relying on the examination of 300 Chukchis made by Almquist during the Nordenskiold Expedition, Magnus concluded that although the color vision of the uncivilized has the same range from red to violet as that of the civilized and all the colors can usually be separately distinguished, there is sometimes a certain dullness, a diminished energy of sensation, as regards green and blue, the shorter and more refrangible waves of the spectrum, while the colors at the other end are perceived with much greater vividness. Stephenson, more recently, among over one thousand Chinese, examined at various places, found only one case of color blindness, but a frequent tendency to confuse green and blue and also blue and purple, while Dr. Adele Fielde, of Swatow, China, among 1,200 Chinese of both sexes examined by Thomson’s wool test, found that more than half mixed up green and blue, and many even seemed to be quite blind to violet. Ernest Krause also has argued that primitive man was most sensitive to the red end of the spectrum, hence setting about to obtain red pigments and acquiring definite names for them, an explanation which is accepted by Karl von den Steinen to account for the phenomena among the Central Brazilians. The recent investigations of Rivers at Torres Straits have confirmed the conclusions of Magnus. He found that, corresponding to the defect of color terminology, though to a much less degree, there appeared to be an actual defect of vision for colors of short wave-length; in testing with colored wools no mistake was ever made with reds, but blues and greens were constantly confused, as were blue and violet.

It may even be argued that the same defect exists to a minor degree not only among the peoples of Eastern Asia whose æsthetic sense is highly developed, but among civilized Europeans when any kind of color blindness is altogether excluded. This was noted long since by Holmgren, who remarked that some persons, though able to distinguish between blue and green wools when placed together, were liable to call the blue wool green, and the green blue, when they saw them separately. Magnus also showed that such an inability is apt to appear at a very early stage in some persons when the illumination is diminished, although the perception of red and yellow remains perfectly distinct. He further showed that blue and green at certain distances are often much more difficult to recognize than red. Most people probably are conscious of difficulty in distinguishing blue and green pigments with diminished light and find that blue easily passes into black. Violet also appears for many people to be merely a variety of blue; the word itself, we may note, is recent in our language, and plays a very small part in our poetic literature, and in fact the color itself, if we rigidly exclude purple, is extremely rare in nature. It is a noteworthy fact in this connection that in normal persons the color sense may be easily educated; this is not merely a fact of daily observation, but has been exactly demonstrated by Féré, who by means of his chromoptoscopic boxes, containing very dilute colored solutions, found that with practice it was possible to recognize solutions which had previously seemed uncolored. It is also noteworthy that in the achromatopsia of the hysterical, as Charcot showed and as Parimand has since confirmed, the order in which the colors usually disappear is violet, green, blue, red; sometimes the paradoxical fact is found that red will give a luminous sensation in a contracted visual field when even white gives no luminous sensation. This persistence of red vision in the hysterical is only one instance of a predilection for red which has often been noted as very marked among the hysterical. Red also exerted a great fascination over the victims of the mediæval hysterical epidemics of tarantism in Italy, while the victims of the German mediæval epidemic of St. Vitus’s dance imagined that they were immersed in a stream of blood which compelled them to leap up.

It may be noted that red and perhaps yellow have been stated to be the only colors visible in dreams; this is possibly due to the blood-vessels. Such an explanation is probable with regard to the various subjective visual sensations which constitute an aura in epilepsy, among which, as Gowers notes, red and reddish yellow are most frequently found. Féré has further noted that in various emotional states somewhat resembling epilepsy, and even in mystic exaltation, red may be subjectively seen. Simroth has gone so far as to argue that not only is red fundamental in human color psychology, but that in living organisms generally, even as a pigment, red is the most primitive of colors, that since the algæ at the greatest sea-depths are red it is possible that protoplasm at first only responded to rays of long wave-length, and that with increased metabolism colors became differentiated, following the order in the spectrum.

If it is really the case that in the evolution of the race familiarity with the red end of the spectrum has been earlier and more perfectly acquired than with the violet end, and that red and yellow made a more profound impression on primitive man than green and blue, we should expect to find this evolution reflected in the development of the individual, and that the child would earlier acquire a sensitiveness for red and orange and yellow than for green and blue and violet. This seems actually to be the case. The study of the color sense in children is, indeed, even more difficult than in savages; and many investigators have probably succumbed to the fallacies involved in this study. Doubtless we may thus account for some discrepancies in the attempts to ascertain the facts of color perception and color preference in children, while doubtless also there are individual differences which discount the value of experiments made on only a single child. A few careful and elaborate investigations, however, especially that of Garbini on 600 North Italian children of various ages, have thrown much light on the matter. There is fairly general agreement that red is the first color that attracts young children and which they recognize. That is the result recorded by Uffelmann in Germany, while Preyer found yellow and red at the head; Binet in France concluded that red comes first; Wolfe in America reached the same result, and Luckey noted that his own children seemed to enjoy red, orange and yellow very much earlier than they could perceive blue, which seemed to come last. Baldwin, indeed, found in the case of his own child that blue seemed more attractive than red; his methods have, however, been criticised, and his experiments failed to include yellow. Mrs. Moore found that her baby, between the sixteenth and forty-fifth weeks, nearly always preferred a yellow ball to a red ball; this was doubtless not a matter of color, but of brightness, for there is no reason to suppose chromatic perception at so early an age. Red, orange and yellow, it may be added, are perceived by a slightly lower illumination than green, blue and violet, the last being the most difficult of all to perceive, so that it is not surprising that the colors at the violet end should be inconspicuous to young infants. Garbini, whose experiments are worth noting in more detail, found that the order of perception is red, green, yellow, orange, blue and violet, and as he experimented with a large number of children and used methods which so competent a judge as Binet regards as approaching perfection, his results may be considered a fair approach to the truth. He found that for the first few days after birth the infant shuns the light; then, about the fourteenth day, he ceases to be photophobic and begins to enjoy the light, as is shown by his being quieted when brought into a bright light and crying when taken from it; this may sometimes begin even about the fifth day. Between the fifth week and the eighteenth month children show signs of distinguishing white, black and grey objects. It is not until after the eighteenth month that their chromatic perception begins, any preference for red and yellow objects at an earlier age being due merely to their greater luminosity. Garbini considers that it is the center of the retina, or the portion most sensitive to red and yellow, which is most exercised in young infants. Between the second and third years children, both boys and girls, were found to be most successful in the recognition of red, then of green, but they very often confused orange with red, and mixed up yellow, blue, violet and green; he thinks they tend to confuse a color with the preceding color in spectral order. Under the age of three children may be said to be color-blind, and they are liable to confuse rosy tints with green. Between the ages of three and five they are able to distinguish red in any gradation, green nearly always, with an occasional confusion with red, while yellow is sometimes confused with orange, orange sometimes replaced by rose, blue often not recognized in its gradations, and violet often selected in place of blue. At this age, also (as in hysterical anæsthesia of the retina), blue seems dark or black. In the fifth and sixth years red, green and yellow are always correctly chosen; orange gradations are not always recognized, and blue and violet come last, being sometimes confused. In the sixth year children are perfecting their knowledge of orange, blue and violet and completing their knowledge of color designations. Garbini has reached the important result that color perceptions and verbal expression of the perceptions follow exactly parallel paths, so that in studying verbal expression we are really studying perception, with the important distinction that the expression comes much later than the perception.[G] These investigations of Garbini are very significant, and there can be little doubt that the evolution of the child’s color sense repeats that of the race.