An Indian, on coming to a trail, will generally tell at a glance its age, by what particular tribe it was made, the number of the party, and many other things connected with it astounding to the uninitiated. I remember, upon one occasion, as I was riding with a Delaware upon the prairies, we crossed the trail of a large party of Indians traveling with lodges. The tracks appeared to me quite fresh, and I remarked to the Indian that we must be near the party. "Oh no," said he, "the trail was made two days before, in the morning," at the same time pointing with his finger to where the sun would be at about 8 o'clock. Then, seeing that my curiosity was excited to know by what means he arrived at this conclusion, he called my attention to the fact that there had been no dew for the last two nights, but that on the previous morning it had been heavy. He then pointed out to me some spears of grass that had been pressed down into the earth by the horses' hoofs, upon which the sand still adhered, having dried on, thus clearly showing that the grass was wet when the tracks were made. At another time, as I was traveling with the same Indian, I discovered upon the ground what I took to be a bear-track, with a distinctly-marked impression of the heel and all the toes. I immediately called the Indian's attention to it, at the same time flattering myself that I had made quite an important discovery, which had escaped his observation. The fellow remarked with a smile, "Oh no, captain, may be so he not bear-track." He then pointed with his gun-rod to some spears of grass that grew near the impression, but I did not comprehend the mystery until he dismounted and explained to me that, when the wind was blowing, the spears of grass would be bent over toward the ground, and the oscillating motion thereby produced would scoop out the loose sand into the shape I have described. The truth of this explanation was apparent, yet it occurred to me that its solution would have baffled the wits of most white men. Fresh tracks generally show moisture where the earth has been turned up, but after a short exposure to the sun they become dry. If the tracks be very recent, the sand may sometimes, where it is very loose and dry, be seen running back into the tracks, and by following them to a place where they cross water, the earth will be wet for some distance after they leave it. The droppings of the dung from animals are also good indications of the age of a trail. It is well to remember whether there have been any rains within a few days, as the age of a trail may sometimes be conjectured in this way. It is very easy to tell whether tracks have been made before or after a rain, as the water washes off all the sharp edges. It is not a difficult matter to distinguish the tracks of American horses from those of Indian horses, as the latter are never shod; moreover, they are much smaller.