The capacity of this horse to sustain fatigue, and to provide food for himself, is equally astonishing. He is galloped all day, sometimes 80 or 90 miles in the space of 10 or 12 hours, and is then left to shift for himself during the night. In the spring, summer and autumn, he finds no difficulty; the short and sweet grass of that country gives him an abundant and nutricious repast. In the winter, and towards the mountains, where the snow is several feet deep, his unerring instinct tells him where to search; he scrapes away the snow with his hoof till he comes to the ground, and rooting there with his nose, finds wherewith of moss and grass to sustain his life. On the borders of creeks and rivers he feeds on the boughs of willows, and other soft wood, which his master has sometimes the kindness to fell for him with a hatchet. This fine animal is found on the banks of the Columbia, in latitude 46, in the great plain which lies on the borders of this river, between the upper and lower range of mountains. His origin is traced to Mexico, thence to Spain, thence to the North of Africa, where the Arabian barb is found in all the perfection of his species. His fine form, his generous spirit, and his noble qualities, are preserved upon the Columbia river; and certainly it is worthy the experiment to endeavour to transplant him into other parts of the United States. Many citizens have attempted to do so; but have always been robbed by the Indians of the Rocky Mountains. Lewis and Clarke procured 73, said by Gov. Clark to be the most beautiful collection of horses that he has ever seen together before or since; but the whole number was stolen from them by Indians, who followed their trail, and never ceased their operations until they had carried off the last. [_St. Louis Inquirer._ JAMES WATT. (Ascribed to an eminent writer.) Death is still busy in our high places; and it is with great pain that we find ourselves called upon, so soon after the loss of Mr. Playfair, to record the decease of another of our illustrious countrymen, and one to whom mankind has been still more largely indebted. Mr. James Watt, the great improver of the steam-engine, died on the 25th ult. at his seat of Heathfield, near Birmingham, in the 84th year of his age.