Several vessels are just arrived here from Burmuda with salt, which 'tis hoped will bring down the extravagant price of that article. By these vessels we have an account of the loss of the Lord Amherst Indiaman, from Jamaica to London, very richly laden. She struck on the rocks of Bermuda and went to pieces by which accident a number of American prisoners who were on board, going to England, were happily released, as they got safe on shore.