Felix Graham, when he left poor Mary Snow, did not go on immediately to the doctor\'s shop. He had made up his mind that Mary Snow should never be his wife, and therefore considered it wise to lose no time in making such arrangements as might be necessary both for his release and for hers. But, nevertheless, he had not the heart to go about the work the moment that he left her. He passed by the apothecary\'s, and looking in saw a young man working sedulously at a pe............