There is a third reason for so many “Ditto and Me-too” authors. Publishers of medical books naturally desire to extend their business, and in order to do this they must issue new works of medicine in the same way that lay publishing houses compete for new works of fiction. Now, doctors usually obtain professorships in some institution by paying five thousand dollars or more for them, and in due time a publisher of medical books will tempt the professor to become an author. They place before him their great facilities for getting up a book, arguing that consequently but little or no labor on the professor’s part is required. They point out to him the fame and honor the publication will bring him, and at the same time estimate how much money they will make out of it. In due time a “Ditto and Me-too” medical brief, résumé, or treatise, is published covering the whole history of the subject, from Biblical mention of it to the present day. All of us have observed what a great amount of stuffing or padding it takes to make a book that is to sell for five or seven dollars. It occurs to me that it might be wise to get up a conference of enlightened physicians to take some practical steps or to devise some laws that will prevent such impositions on the too confiding medical brethren by unscrupulous publishers that rob them of their hard-earned income through delusive advertising. Still, before any action is taken that would result in effectively closing the door to this practice, it may be as well that the eyes of more of us should be opened that we may not continue to be duped and stung again and again by “Ditto and Me-too” scrapbooks with hundreds of pictures. When seeking for new and better information to help suffering humanity, let us be served for a little while longer with “rehashed rot.” Pardon this digression. We will now consider, at first hand, the subject of fistula. As a rule, pus in a fistula is a secondary symptom of chronic proctitis, except those fistulæ that occur from traumatic injury to the region of the rectum, anus, and buttocks. Early in my practice I entertained the idea that the formation of pus occurred at the point of dissolution of the tissue, and that, as the volume of pus increased it made its way in the direction of least resistance through it, if the abscess had not been opened by an incision. The idea was well founded when it was applied to the traumatic origin of an abscess and fistula, but not when their origin was traced to chronic proctitis.