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