Read it through once

“Put it,” he resumed, “as the employer of that lawyer whose name begun with a J, and might be Jaggers,—put it as he had come over sea to Portsmouth, and had landed there, and had wanted to come on to you. ‘However, you have found me out,’ you says just now. Well! However, did I find you out? Why, I wrote from Portsmouth to a person in London, for particulars of your address. That person’s name? Why, Wemmick.”