I also recommend that commissions be organized by Congress to examine and decide upon the validity of the present subsisting land titles in California and New Mexico, and that provision be made for the establishment of offices of surveyor-general in New Mexico, California, and Oregon and for the surveying and bringing into market the public lands in those Territories.  Those lands, remote in position and difficult of access, ought to be disposed of on terms liberal to all, but especially favorable to the early emigrants.

In order that the situation and character of the principal mineral deposits in California may be ascertained, I recommend that a geological and mineralogical exploration be connected with the linear surveys, and that the mineral lands be divided into small lots suitable for mining and be disposed of by sale or lease, so as to give our citizens an opportunity of procuring a permanent right of property in the soil.  This would seem to be as important to the success of mining as of agricultural pursuits.

The great mineral wealth of California and the advantages which its ports and harbors and those of Oregon afford to commerce, especially with the islands of the Pacific and Indian oceans and the populous regions of eastern Asia, make it certain that there will arise in a few years large and prosperous communities on our western coast.  It therefore becomes important that a line of communication, the best and most expeditious which the nature of the country will admit, should be opened within the territory of the United States from the navigable waters of the Atlantic or the Gulf of Mexico to the Pacific.  Opinion, as elicited and expressed by two large and respectable conventions lately assembled at St. Louis and Memphis, points to a railroad as that which, if practicable, will best meet the wishes and wants of the country.  But while this, if in successful operation, would be a work of great national importance and of a value to the country which it would be difficult to estimate, it ought also to be regarded as an undertaking of vast magnitude and expense, and one which must, if it be indeed practicable, encounter many difficulties in its construction and use.  Therefore, to avoid failure and disappointment; to enable Congress to judge whether in the condition of the country through which it must pass the work be feasible, and, if it be found so, whether it should be undertaken as a national improvement or left to individual enterprise, and in the latter alternative what aid, if any, ought to be extended to it by the Government, I recommend as a preliminary measure a careful reconnoissance of the several proposed routes by a scientific corps and a report as to the practicability of making such a road, with an estimate of the cost of its construction and support.

For further views on these and other matters connected with the duties of the home department I refer you to the report of the Secretary of the Interior.