d. Great care should be taken, however, to commence no work
which is not of sufficient importance to the commerce of the country
to be viewed as national in its character. But works which have been
commenced should not be discontinued until completed, as otherwise the
sums expended will in most cases be lost.

The report from the Navy Department will inform you of the prosperous
condition of the branch of the public service committed to its charge.
It presents to your consideration many topics and suggestions of which
I ask your approval. It exhibits an unusual degree of activity in the
operations of the Department during the past year. The preparations for
the Japan expedition, to which I have already alluded; the arrangements
made for the exploration and survey of the China Seas, the Northern
Pacific, and Behrings Straits; the incipient measures taken toward a
reconnaissance of the continent of Africa eastward of Liberia; the
preparation for an early examination of the tributaries of the river La
Plata, which a recent decree of the provisional chief of the Argentine
Confederation has opened to navigation--all these enterprises and the
means by which they are proposed to be accomplished have commanded my
full approbation, and I have no doubt will be productive of most useful
results.

Two officers of the Navy were heretofore instructed to explore the whole
extent of the Amazon River from the confines of Peru to its mouth. The
return of one of them has placed in the possession of the Government an
interesting and valuable account of the character and resources of a
country abounding in the materials of commerce, and which if opened to
the industry of the world will prove an inexhaustible fund of wealth.
The report of this exploration will be communicated to you as soon as
it is completed.

Among other subjects offered to your notice by the Secretary of the
Navy, I select for special commendation, in view of its connection
with the interests of the Navy, the plan submitted by him for the
establishment of a permanent corps of seamen and the suggestions he
has presented for the reorganization of the Naval Academy.

In reference to the first of these, I take occasion to say that I think
it will greatly improve the efficiency of the service, and that I regard
it as still more entitled to favor for the salutary influence it must
exert upon the naval discipline, now greatly disturbed by the increasing
spirit of insubordina