The following general remarks of Schoolcraft, Vol. I, p. 351, are of some value, though they apply with any accuracy only to the Ojibwa and are tinctured with a fondness for the mysterious:
For their pictographic devices the North American Indians have two terms, namely, _Kekeewin_, or such things as are generally understood by the tribe; and _Kekeenowin_, or teachings of the _medas_ or priests, _jossakeeds_ or prophets. The knowledge of the latter is chiefly confined to persons who are versed in their system of magic medicine, or their religion, and may be deemed hieratic. The former consists of the common figurative signs, such as are employed at places of sepulture, or by hunting or traveling parties. It is also employed in the _muzzinábiks_, or rock-writings. Many of the figures are common to both, and are seen in the drawings generally; but it is to be understood that this results from the figure-alphabet being precisely the same in both, while the devices of the nugamoons, or medicine, wabino, hunting, and war songs, are known solely to the initiates who have learned them, and who always pay high to the native professors for this knowledge.
It must, however, be admitted, as above suggested, that many of the pictographs found are not of the historic or mythologic significance once supposed. For instance, the examination of the rock carvings in several parts of the country has shown that some of them were mere records of the visits of individuals to important springs or to fords on regularly established trails. In this respect there seems to have been, in the intention of the Indians, very much the same spirit as induces the civilized man to record his initials upon objects in the neighborhood of places of general resort. At Oakley Springs, Arizona Territory, totemic marks have been found, evidently made by the same individual at successive visits, showing that on the number of occasions indicated he had passed by those springs, probably camping there, and such record was the habit of the neighboring Indians at that time. The same repetition of totemic names has been found in great numbers in the pipestone quarries of Dakota, and also at some old fords in West Virginia. But these totemic marks are so designed and executed as to have intrinsic significance and value, wholly different in this respect from vulgar names in alphabetic form. It should also be remembered that mere _graffiti_ are recognized as of value by the historian, the anthropologist, and the artist.