That a more accurate, defined, and available knowledge than we at present possess, of the waters, islands, and continental coasts of the great Pacific and Southern Oceans, has long been desirable, no unprejudiced individual conversant with the subject, is likely to deny. A portion of the community unrivalled in activity, enterprise and perseverance, and of paramount importance both in a political and commercial point of view, has long been reaping a rich harvest of individual wealth and national honor in these vast regions. The Pacific may be termed the training ground, the gymnasium of our national navy. The hardihood and daring of that branch of our commercial marine employed in its trade and fisheries, have almost become a proverb. It is in this class we meet with the largest aggregate of that cool self-possession, courage, and enduring fortitude, which have won for us our enviable position among the great maritime powers; and it is from this class we may expect to recruit a considerable proportion of the physical strength and moral intelligence necessary to maintain and improve it. The documentary evidence upon which the report before us is based, forms an appendix to it, and is highly interesting in its character. It awakens our admiration at the energy and industry which have sustained a body of daring men, while pursuing a dangerous and arduous occupation, amid the perils and casualties of an intricate navigation, in seas imperfectly known. It enlists our sympathies in the hardships and difficulties they have combatted, places in strong relief the justice of their claims upon the nation for aid and protection, and shows the expediency of the measure which has at last resulted from their representations. The report itself is clear, manly, decided—the energetic language of men who, having examined the data submitted to them with the consideration the interests it involved seemed to require, are anxious to express their sentiments with a force and earnestness suited to their views of the urgent occasion and of the course they recommend.