The projected railroad across the continent should start from the Mississippi near the mouth of the Ohio, or at such a point that the navigation will never be liable to be interrupted by ice; thence to the vicinity of the Arkansas; thence along the prairie ridge which separates the waters that flow into the Arkansas from those which flow into the Mississippi and Missouri, to the point where the road passes from Missouri to New Mexico, and by _San Miguel_ to _Santa Fe_; thence up the valley of the _Rio del Norte_ to the mouth of the _Abaca_ creek; thence up the creek to the town of the same name, and thence through a pine forest of low sandy hills ninety miles in length to the _Rio de la Plata_, which is a tributary of the _San Juan_. The latter is a tributary of the _Colorado_. It should cross the _Colorado_ to the Northwest side and proceed along the trail from _Santa Fe_ to California to a point between the _Mahahve_ river and the _San Bernardino_ mountain; thence through about ten miles of low hills to the great valley of the _San Joaquin_; thence down that magnificent and fertile valley, about five hundred miles on a level, to the tide water of the Bay of San Francisco. By this route the road will pass over a dead level of about eight hundred miles at the eastern end, and about five hundred miles at the western; it will have _no mountains to cross_, will be nearly free from snow in all parts, will afford, for New Mexico, an outlet to both Oceans, and terminate at the best part of the western coast of America. The point of the terminus of the railroad is by an accident, so to speak, already selected with a good deal of discernment; it is called the New York of the Pacific, situated at the upper part of the Bay of San Francisco, known here as Suisun Bay. An enterprising company, at the head of which is Col. Stevenson, have bought a tract of land at the mouth of the _San Joaquin_, where it mingles its waters with those of the Sacramento, and are already building a town. Its situation for the terminus of the railroad is very advantageous; it is level; has abundance of land to expand upon; it is in the neighborhood of grazing farms; its climate is healthy, as is the rest of the south bank of the San Joaquin; well-water can be found there within a few feet of the surface; the river is deep enough to admit large vessels close to the shore, and its water here is fresh and sweet; ships can water here with the greatest facility. The vessels going up the Sacramento pass within sight of it. It is a spot very judiciously selected for a town, and we have no doubt it will grow, as the proprietors spare no efforts to make it acceptable to new settlers.