A fire occurred at Santa Fe, New Mexico, on the 22d of April, which destroyed the finest hotel in the place. Col. Sumner, who is to take command of the United States military force in the Department, carries with him a large amount of seeds, grains, improved stock, farming utensils, and apparatus for developing the capacity of the soil. It is designed to make the United States troops in New Mexico support themselves as far as possible. The Apache Indians have been very troublesome, but a treaty of amity has been effected with their principal chief, Chacon. The Mexican citizens are well satisfied with the establishment of the Territorial Government.

The California mails of March 15th and April 1st have been received. The steamers which sailed from San Francisco on those days took away more than $3,500,000 in gold dust for the Atlantic States. The news is generally of a very favorable character. The severe drought which had prevailed through the whole winter, terminated on the 17th of March, when a succession of heavy showers commenced, the effect of which had been to revive business of all kinds. The miners in the dry diggings had a sufficiency of water to wash out their piles of dirt, and the gold dust, flowing into the centres of trades, soon dissipated the dulness which had fallen upon business of all kinds. Agricultural prospects have also brightened, and the crops of California will this year be an important feature of her products. The odious tax of $20 per month on all foreign miners has been repealed, and the Mexicans and Chilians who were last year driven out of the country will probably return.

The Legislature still continues in session, and since its futile attempt to elect a United States Senator, has gone vigorously to work. The sale of lottery tickets has been prohibited; the sum of $200,000 appropriated for the pay of persons engaged in military operations against the Indians, and the State Treasurer authorized to obtain a loan of $500,000. The District Court of Sacramento has given a decision sustaining the suitors of claims on all lands on which the city is located. A fugitive slave case—the first in California—has been settled at San Francisco. The owner of a slave, who had employed him in the mines for three or four months, was about to return with him to the Atlantic States. But as the slave preferred remaining, a writ of habeas corpus was procured and a hearing had before the Court, which decided that the negro was at liberty to stay and could not be removed against his will.

A fire broke out in a bowling alley in Nevada City, on the 12th of March, and spread so rapidly that before it could be subdued, the largest and best portion of the city was in ashes. One hundred and twenty-eight houses were destroyed, and the entire loss is estimated at $300,000.

Accounts from all parts of the gold region give flattering accounts of the golden harvest for the present year. The richest locality appears to be the district lying between Feather River and the American Fork, embracing the Yuba and its tributaries. The northern mines, on Trinity, Scott's and Klamath Rivers, continue to attract attention. On the Mokelumne River, gold is found in large quantities on the sides and summits of the hills. A placer of the precious metal has also been discovered by the Mexicans near San Diego. The operations in quartz mining promise to be very profitable. A vein near Nevada City has been sold for $130,000. Later accounts from the Gold Bluff are more encouraging. The top sand was washed away during a severe gale, and the heavy substratum, being washed, was found to yield from three to eight ounces to each pailful. Messrs. Moffat & Co., who obtained the Government contract for assaying gold, received deposits of gold dust amounting to $100,000 in two hours after opening their office. The operations of the office had such an effect that the bankers of San Francisco were compelled to raise the price of gold dust to $17 per ounce, in order to have any share in the trade.

Professor Forest Shepard, of New-Haven, who has been prosecuting geological explorations in different parts of California, has discovered a remarkable valley in the Coast Range, north of Napa Valley. It is an immense chasm, 1000 feet deep, in the bottom of which was a large number of boiling springs and jets of steam, with here and there a fountain of hot water, similar to the geysers of Iceland. There are more than two hundred in all, within a compass of half a mile square. The soil of the valley was so warm that, although it was in the middle of winter, flowers were in full bloom and a luxuriant vegetation springing on all sides. It is Professor Shepard's intention to claim a portion of the valley, build a house thereon, and plant tropical trees in the warm soil.

The Hon. Samuel R. Thurston, Delegate to Congress from Oregon Territory, died on the 9th ult., on board the steamer California, bound from Panama to San Francisco. His remains were taken to Acapulco for interment.

Our news from Oregon is to the 22d of March. A discovery has been made by Capt. George Drew, of a vein of coal on the Cowlitz River, eighteen miles from its junction with the Columbia, and about one mile from the main Cowlitz. The vein is two feet thick and about half a mile in width, fifteen feet above high water mark and about forty feet below the surface of the bluff mountain. Governor Ogden, of the Hudson's Bay Company, at Vancouver, sent a boat and crew to bring a quantity away, that it may be fairly tested.

EUROPE.

The Grand Exhibition of the Industry of All Nations, in the Crystal Palace at LONDON, was opened on Thursday, May 1, with appropriate and imposing ceremonies. Just before twelve o'clock, which was the hour appointed for the arrival of the Queen, the rain that had been falling at intervals during the day ceased altogether, and the sun shone forth from a cloudless sky. On the appearance of the Royal cortêge, the utmost enthusiasm was manifested by the people who thronged the vicinity of the Palace, and, in the midst of the cheers of the multitude, and the flourish of military music, the Queen, accompanied by Prince Albert, the Prince of Wales, and the Princess Royal, was ushered into the interior of the building. She was welcomed by the vast assemblage with repeated and universal cheers, ladies waved their handkerchiefs, gentlemen their hats, and the whole scene presented a spectacle of unrivalled splendor. After she had ascended the throne, which was a raised platform surmounted with a blue canopy ornamented with feathers, the National Anthem was sung by an immense choir under direction of Sir Henry Bishop. When the music had ceased, Prince Albert presented to the Queen the report of the proceedings of the Commissioners, to which she replied in a short speech. The Archbishop of Canterbury then offered the prayer of inauguration, at the close of which the Hallelujah Chorus was sung. A procession was now formed, composed of the architect, contractors, and officials engaged in the construction of the Crystal Palace, the Foreign Commissioners, the Royal Commissioners, Foreign Ambassadors, and the members of the Royal Family. After making the circuit of the building in the procession, the Queen resumed her seat on the platform, and announced by a herald that the Exhibition was opened. A flourish of trumpets and a discharge of artillery proclaimed the fact to the thronging multitudes on the outside. The Queen, attended by the Court, then withdrew from the building; the choir again struck up the strain of the National Anthem; the barriers, which had confined the spectators within certain limits, were removed; and the whole mass of visitors poured over every part of the magnificent edifice, eager to gratify a highly excited curiosity.