A MYSTERIOUS RETURN.– Mr. Richard D. Doran, a merchant of Harper’s Ferry, whose mysterious disappearance some few years since, has been a matter of newspaper comment, returned to his former home on Saturday last. He has been spending most of his time in Glasgow, Scotland. It is a singular case, and will produce some strange judicial proceedings. Supposing that he had either died or been murdered in Philadelphia, his estate, being a very considerable one, had passed into the hands of administrators, and we presume entirely settled, so far as the agents of the court were concerned, leaving a large surplus just in process of distribution among his legal representatives.– Charl. (Va) Spirit.