Here they will be spared the malarias diseases which have attended the settlement of many of the western States, and which are still the scourge of the finest regions in the Southwest. A case of fever and ague was never known in Lyon County, and the whole country is absolutely free from diseases of a miasmatic origin.  This rarity of atmosphere has also a highly beneficial effect upon those suffering from pulmonary complaints, and it is confidently believed that these diseases, incident to the more damp atmosphere of the New England States can never arise in this country.

Dr. J. W. Foster, in his great work, "Valley,"  says: "As we trace the isotherms of spring and summer, say from New York as a geographical point, they are found to pursue a pretty uniform direction westerly until they reach the western shore of Lake Michigan, when they abruptly curve to the northwest."  Without entering upon a discussion of the laws of climatology to account for this phenomenon, we will state that the truth of these observations is unanimously attested by the inhabitants of the great Valley of the Missouri.  While our latitude is that of Central New York, we have a far more salubrious climate.  The summers are warm, but are not hot and sultry, owing to the pleasant breezes which invariably spring up on the prairies in the forenoon, and continue through the day.

During the winter, rainfall is almost unknown, and, although the winters are cold, the air is so dry and bracing that their severity is not felt as in the humid regions of the East, or changeable climate of a more southern latitude.

But the crowning beauty our climate is autumn.  The delightful season known as "Indian summer" is here often prolonged into December, and is peculiarly charming.  A calm, soft, hazy atmosphere fills the sky, through which, day after day, the sun, shorn of his beams, rises and sets like a globe of fire.  By night the heavens are lighted by the burning prairies, the forests are tinged with the most gorgeous hues, and all Nature seems to wear the enchantments of fairy land.  Almost imperceptibly these golden days merge into winter; and so the seasons pass, year after year.