On the west side of the Arkansas River, and between that stream and the Rocky Mountains, there are three distinct species of grass found. The first is the short, curly variety, on which the buffalo are said to feed, from which fact it takes its name. The second kind is the Grama grass, which is, I believe, indigenous to only this section of America. Its stalk grows to the height of about one foot. Near its top, it gives off, at right angles, another stem, which is usually from one and a half to three inches in length. From this last-mentioned stem, hang clusters of seeds which are well protected by a suitable covering. It is said, and my own observation confirms the fact, that horses will leave grain, such as corn and oats, to feed on this grass; and its wonderful nutritious properties cannot be denied. Wild oats are often seen in the mountain valleys. Along the low swampy lands which skirt the rivers of the plains, there is yet another species of grass which grows oftentimes several feet high, and has a broad blade, similar almost to that of the flag plant. On approaching the mountains the blue grass is found, which is nearly the same as that usually met with in many of our western States. The bunch grass, as spoken of by Fremont, is not confined to the mountains in New Mexico; it is sometimes met with in the valleys, where it grows to an immense height; but, in the low lands, it is useless, being too tough for animals to masticate. Strangers, when journeying in these parts, often make the mistake of selecting camps in this tall grass, being deceived by its thrifty appearance; but, one night, thus spent, will clearly prove its utter worthlessness.