At Leavenworth, up at the old Fort, we saw our first Indians--a party of Delawares. They consisted of Fall-Leaf, war-chief of the Delawares, his nephew General Jackson, and a handful of other braves. They were dressed in the usual rough costume of the border, but with an eagle-feather or two in their broad-brimmed sombreros trailing in the wind. Fall-Leaf was a noble specimen of the Indian in a half-civilized state. He was a brawny, athletic, powerful fellow, five feet eleven inches high, weighed one hundred and ninety-six pounds, and was fifty-five years old. A perfect mass of bone and muscle, without an ounce of superfluous flesh, his frame was a sight to look upon--especially the massive splendor of his neck and chest. A Hercules of the Plains, we could well believe the stories told of his great strength and powers of endurance. General Jackson was a lithe, light-built man, about thirty-six years of age, and in physique almost the opposite of his brawny uncle. Three of them had just been engaged as guides to a military expedition about leaving for the Indian country, and a fourth was going along as interpreter. Fall-Leaf had long served the government, with marked fidelity, as guide on the Plains and in the far Indian country, and received one hundred and fifty dollars per month and rations when absent on such duty. He was familiar with the whole country west, as far as the Rocky Mountains, and southward to New Mexico, and was reputed as invaluable in his way. He told me the Delawares numbered about a thousand souls yet, and had stood at those figures for several years. They occupy a Reservation of several thousand acres on the Missouri just below Leavenworth, and are engaged generally in farming and stock-raising. They have a church, pretty generally attended, and a good school, well-patronized. He said his people were fully impressed with the importance of education and religion, and generally there was an earnest desire among them to have their children learn all "Pale-Face ways." He said he took a drink of "fire-water" himself occasionally, on cold or wet days, and rather liked it; but that, as a rule, drunkenness was on the decrease among the Delawares, and he was glad of it. He had a wife and eight children, and said they allowed "only one wife at a time in his tribe." He said he was born far away toward the rising sun, on a river among the mountains; and when I showed him a map, he immediately pointed out the head-waters of the Delaware. When I told him I had just come from there, and that my "wigwam" stood upon its banks, he seemed greatly interested. The first steamboat he ever saw, was many years before at St. Louis, and he thought it "Very good," because "It went itself! Puff! Puff! No paddle!" His first locomotive, was quite recently at Leavenworth, and he thought it "Much good! Went whiz! Beat buffalo or pony!" Of the telegraph, he said, "I no understand; but very much good! Heap swift!