Samantha is interested and runs over to her friend Abigail Simpkins to discuss the strange occurrence. That they are unable to do more than enjoy a little idle gossip is owing to the lack of any clew on the envelope as to the nature of the business or occupation of the party addressed. In this feature Dr. Wilkinson’s plan is a good one. In corresponding with patients or prospective patients use plain envelopes, or if some safeguard in the matter of return is desired, use a post-office card in the corner such as “If not delivered in five days return to Box ——, Chicago Post Office.” Nothing more. Should anybody make an effort to ascertain who has rented this particular box in Chicago, or any other city of decent size, he will be politely told by the postal officials that it is none of his business. Sometimes the parties addressed die before the letter reaches them. In cases of this kind the return card in the corner of the envelope serves a good purpose. It is the duty of the postmaster to return it to the address given in the card marked “Party dead.” When this happens 113the correspondence chief takes the card from the file and destroys it. There is no use wasting time, stationery and postage on dead ones. About five or six forms of these preliminary letters are prepared, and each is given a number such as No. 1, No. 2, and so on. When they are to be sent out it is not necessary for the correspondence chief to dictate a letter to each prospect. He merely sorts out the cards which are due to be attended to that day and turns them over to one of the girls to send No. 1, or No. 2, or whatever letter may be in order. The stenographers have copies of all these letters and, as they write them, the form number of the letter and the date of its mailing is entered on the prospect card. After the list of letters has been exhausted the cards are transferred to another file to be used later in connection with the “I have been called to your town” correspondence. This is a great labor-saving system and makes possible the transaction of an immense amount of correspondence at the minimum of expense. Many invalids, especially those who have tried various forms of treatment without obtaining relief are doubters—they insist upon “being shown.” They insist upon some convincing evidence that this special treatment has merit. This is easy in most instances although once in a while the specialist runs across a hardened old cuss who would not believe the Angel Gabriel under oath, and doesn’t hesitate to say so.