In 1677 a book was published in London giving an account “of America and all the principal kingdoms, provinces, seas, and islands of it.” Mr. Heylin, the author, thus speaks of New Mexico in volume IV: “Nova Mexicana is bounded on the south with New Biscay; on the west with Quivara; the countreyes, on the north and east, not discovered hitherto, though some extend eastward as far as Florida, extended two hundred and fifty leagues from the town and mines of Santa Barbara, and how much beyond that none can tell; the relations of this country being so uncertain and incredulous that I dare say nothing positively of the soil or people, but much less of the towns and cities which are said to be in it.” New Mexico, as at present constituted, has an area of 121,201 square miles, and in a general way may be said to consist of tablelands, mountains, and valleys. The tablelands rise one above another in well-defined terraces, with an altitude above sea level of from 5,000 feet in the southeast, to 7,500 feet in the northwest. These tablelands cover about two-thirds of the Territory, and constitute the valuable grazing lands. The mountainous region consists of the Rocky Mountains, which enter the Territory from the north in two chains—like the prongs of a fork. The eastern chain terminates a few miles south of Sante Fe, while the western one ends in the broken and detached ranges of the southern section of the Territory. These mountains are rich in gold, silver, iron, copper, lead, and coal. Sections of them are covered with valuable timber, and among them are many medicinal springs. The valleys lie between these mountain ranges, and contain the agricultural lands, and are farmed by artificial irrigation. These valleys produce good crops of corn, wheat, beans, etc., and in the southern half of the Territory raise fine apples, pears, plums, apricots, peaches, and grapes, the grapes up to the present time being more abundant than other fruits. In addition to the above, the Messilla (Ma-see´-ya) valley produces quinces, figs, and pomegranates. Artificial irrigation is supplied from the melting snows of the mountains. The principal streams are the Rio Grande (Ree´-o Gran-da), the Canadian, the Pecos (Pa-cos), the San Juan (San Whan), and the Gila (Hee-la). The Rio Grande River is the Nile of America. It is 1,800 miles long and of almost equal volume from its source to its mouth, flowing hundreds of miles without receiving a tributary of any size, being fed almost entirely from the snows of the mountains. Along on either side of the river are canals conveying the water to the adjacent farms. The water is exceedingly roily and its annual deposit of sediment upon the land increases its fertility. The climate is unexcelled by any portion of the United States—being a succession of bright sunshiny days almost the year through. The country is free from malarial, billious and lung troubles, general debility and asthma.