Electro-Magnetic Telegraph

We understand that the business of the electro-magnetic telegraph between Washington and this city, since it became a branch of the Post Office Department, has far exceeded expectation. The correspondence between the merchants of the two cities, we are informed, is constantly carried on by means of this important invention; and we learn that it is frequently the case that orders, received here at 1 o’clock, P. M. from Washington, are filled and the goods placed in the freight train of cars at 3 o’-clock tho same afternoon, at which hour the reception of heavy goods ceases for the day. Orders for small packages, received at half-past 4, are attended to promptly, and the goods forwarded by the passengers train which leaves here at 5 o’clock, and reaches Washington at half past 7 o’clock.

The Departure of the Great Eastern

From the London Times.

Nore Light, Thursday, Sept. 8.

After her first short run the Great Eastern remained at her anchor off Purfleet for the rest of the night, and slowly resumed her progress down the river at a quarter to 9 o’clock this morning. Her stoppage at Purfieet was a sad disappointment to many thousands who had been collecting at Gravesend all day in the firm belief that she could or would stop nowhere else. Her slight detention at Blackwall point, however, prevented this, and it became absolutely necessary from the state of the tide to bring up at once at Long Reach. The distinguished arrival threw Purfleet into a state of uncommon excitement. Every one within moderate reach of it by road or rail hurried to the little village till it was thronged to the water’s edge. Gravesend, also, seemed most unwilling to yield up its share in the great occasion without an effort, and before long crowded boats steered round and round the ship, the passengers cheering themselves till they were hoarse again, while the bands played “See the Conquering Hero Comes,” “Rule Britannia,’’ and ail sorts of musical welcomes. For the rest of the evening there was a constant repetition of such visits. Not a vessel passed that did not turn up hands to cheer, while many, as they came down the river, dressed in flags from stem to stern. It was not till night had fallen that the great ship was fairly left alone, and began swinging round to her anchor with the rising tide. The night was a little puffy, and seemed inclined to come more so, but the wind fell as the moon rose, and the weather eventually settled down into a dead calm, it took upwards of an hour for the tide to turn the ship fully round, and at low water, as she lay across the river for a short time in turning, she might almost be said to have stopped the navigation with her colossal bulk. During the night she swung twice again, and by daylight was lying with her head fair for the resumption of her course down the river.

The Atlantic Telegraph Cable

The last steamer from England brings the following:

The shore end of the Atlantic cable was landed and successfully connected with the instruments on board the Great Eastern. The Knight of Kerry invoked success on the undertaking, and in conclusion called on Sir Robert Peel, who made an admirable address. Cheers were then given for the President of the United States, when paying out of the heavy shore end of the cable commenced. The splice was completed in the most successful manner, and the cable worked perfectly. The gunboats Terrible and Sphynx accompanied the Great Eastern. A telegram from Valencia, dated the 24th of July, says : “Insulation defects took place on Monday afternoon. The mischief is supposed to exist three miles west of the shore-end splice, and it is believed that it was caused by too much strain from the Great Eastern. She hove too [sic] ten miles from the shore. The Caroline is picking up and underrunning the splice and repairing the fault. It is expected that the damage will be rectified immediately.