The Sun. — 1854-06-20 (London, England)

LORD ELGIN'S MISSION TO AMERICA. IMPORTANT TREATY. The steam-ship America, which arrived at Liverpool yesterday, has placed us in po.isession of important information relating to Lord Elgin's mission to the United States. The following particulars may be relied upon Lord Elgin, on the departure of the 'America for Liverpool, was about to leave Washington, after having completed a very important treaty with the Government of the United States. The chief features of this treaty are, that the citizens of the United States are to enjoy the same privileges in rezard to fishing as are possessed by the colonists on all the coasts of the British North American provinces— that is, they will obtain the right of fishing within three miles of all bays, inlets, cores, &c. They will be allowed to erect and carry on fishing establishments on British North American territory. The naval force hitherto kept up by Great Britain to protect the provincial fishermen will be removed. In exchange for these great privileges there is to be complete reciprocity and free trade between the United States and the provinces in all articles the produce of each, with the exception of sugar and tobacco, coming from the United States, which are to pay the same duties as are levied upon these articles when arriving from British colonies or other parts of the world. Manufactured. articles, although manufactured from products of either country, are not to be admitted under the terms of the treaty. As Canada—especially Western Canada—is daily becoming a more wheat producing country, the operation cf the treaty cannot fail to be at once of great importance to the province, and its already immense lumbering trade will also receive a fresh impetus from the treaty. An effort was made by Lord Elgin to obtain American registers for vessels built at Quebec, St. John's, and the other ship building ports of the province ; but the American Government declined to entertain that proposal. Lord Elgin would, after visiting New York, leave that city on the 'ith inst., to accept an invitation which he had received from the Mayor and municipality of Portland, after which he proceeds on the following twiahyeroev(earlsothaet Gc2uraenbdec)Jugnrecatiton Railway to Montreal, to receive his excellency his return n preparations a f taerre a makingseven months' absence. o n  The steam-ship America, by which the preceding in'. telligenee was received, brings advices from New York to the 6th, Boston to the 7th, and Halifax to the Bth inst. She passed the Royal Mail steam-ship Niagra off Boston at 8.15 p.m. on the 7th. The America brought 130 passengers and 590,000 dollars in specie, a portion of which is for French merchants.  The steam-ship Daniel Webster arrived at New Orleans on the sth inst., with advices from California to the 15th ult.—two weeks' later news than previously received. She reports 1,500,000 dollars being en route for New York, per the Star of the West steamer. The steamer El Dorado, arrived at New Orleans same day from Aspinwall, reports the George Law, with the mails and passengers from California, with 1,000,000 dollars in specie, as having left Aspinwall on the 31A ult. for New York. The health of the Isthmus was reported excellent. The revolution in Nicaragua is reported to have resulted in the complete success of the insurgents. The excitement with reference to the recent Greytowst troubles had completely died away. A great riot took place at Brooklyn on the 4th inst., between a number of American Protestants and Irish Roman Catholics, in the course of which several shots were exchanged and a number of persons were wounded, but none had proved fatal at the last accounts. Further disturbances are apprehended, and the military have been ordered to hold thern,elves in readiness.  At Cutchogne, Long Island, an awful tragedy had taken place. Three persons were murdered—James Wickham, Esq , and his wife and servant negro boy— by a discharged domestic named Dane. The details are most horrible, the butchery of the unfortunate yin. tints. having been effected with a hatchet. Tito 'mar' derer, after a day's search, was captured in a waod : he had, previous to his arrest, attempted to commit suicide, but failed. Money in the market was more stringent, owing to heavy payments falling due and a few failures. Sterling exchange was firm at 10.91 to 1091. Stocks rather agitated and drooping. In the cotton market there was a slight alteration ; prices had given way a little—l cent. within a week. Trade was dull. The flour market quite firm. Prices ranged from 811 to 12 dollars. Wheat has advanced from five to sight cents.