Mechanics.............. 93

Sailors................12,976

Making a total of.................................23,898

In the Spanish navy, promotion is dependent upon fired rules, and the result is identical with that which has already been adverted to, in connection with the scientific corps of the land service. Mr. WALLIS informs us that it is a very rare thing for naval officers to be heard of in association with political intrigues, or, indeed, anything political; although they are remarkable as a class for their ability, and for the extent of their general as well as professional attainments. Until lately, the Spanish navy had been for many years in a state of sad inactivity, and the opportunity for any practical exercise of the scientific acquirements which the routine of the service prescribes was extremely insignificant. Sailors and naval commanders cannot be made or occupied without ships, and the disasters of the preceding and the present century had not only destroyed the proud armaments of Spain, and exhausted the means of their restoration, but it had in a great degree broken the spirit which might have repaired her fortunes on the sea. All the temptations which leisure creates were therefore thrown in the way of the officers of the navy. Ambitious, and at the same time capable and well educated, they had every inducement to seek, in the palace or the halls of legislation, the command which they had no quarter-decks to supply. The influences which countervailed so natural a tendency must have been strong, especially when they beheld Field Marshals and Generals changing into Senators and Secretaries all around them, and when there was scarcely a scale of power into which some one did not fling, before their eyes, a sword no heavier than theirs.

The sums voted to ward defraying the expenses of both arms of the Spanish service were, according to the budget of last year, for the army, $19,-179,348; and for the nary, $5,948,844; which amounts were increased by a special budget of $3,328,000 for the army, and $5,200,000 for the navy. These figures make the total for the year $22,507,348 for the army, and 11,148,844 for the navy; and a grand total of expenditure for both arms of the service of $83,656,192.

GIGNOUX's "INDIAN SUMMER." -- Our readers will remember that we have at various times spoken of a large picture upon which GIGNOUX had been working for many months. It is now completed, and on exhibition at the gallery of Mr. SCHAUS, on Broadway, Under the title of an "Indian Bummer in Virginia" the artist has successfully attempted to convey to those unacquainted with the golden colorings, and the variegated beauties of that most delightful season, a representation of its unequaled splendors. Of all romantic spots of that poetically beautiful region, the "Hawk's Nest" in the Alleghanies is the most wondrous. Here GIGNOUX selected his theme, and with it found unaccustomed inspiration. One familiar with the grandeur of the mountains, the deep calm of the valley, the dazzling glories of the atmosphere, the exquisite tintings of the foliage, and the pronounced and absolute color of the more susceptible plants, would feel surprise that any artist would be willing to venture his reputation upon a pictured representation of the spot.

This, however, GIGNOUX has done, and while preserving to a remarkable extent the portraiture, he has, remembering his title, worked in also the many characteristics of our American coloring. Grand old trees, moss-covered and crowned with gorgeous foliage -- trailing vines, superbly tinted-vast mountains, tree-clad and abounding in shaggy rocks -- a placid water, shadow-filled and dark -- a misty atmosphere, hazy, yet bright with the golden sunlight, and white floating clouds, lake-reflected, are elements the management of which reflect great credit, not upon the imagination, but upon the delineating power of the artist.

The picture has attained a great success. Here, where one is not surprised at Autumnal beauty, the picture is admired for its fidelity to nature, and its remarkable composition, while in Europe (where it is soon to be exhibited,) it will doubtless be criticised for exaggerations of color, and admired rather as an evidence of the ingenuity and handicraft of the artist than as a faithful picture of a well-known spot.

SCHAUS has also upon exhibition an exquisite engraving by COUSINS, from a picture by MERLE, called the "Christian Maiden." It is of a similar school as the "Christian Martyr," though not so painful in its prominent features, and will undoubtedly meet with the success which it, in common with the latter, so well deserves. The soft-lined engraving is even more beautiful than the original picture, which has for a long time been regarded as one of the most tenderly suggestive paintings, among the many pictured exponents of sacred feeling to be found in the galleries, native or foreign.