After his return Yperman settled down in his native town and practiced surgery until his death, which probably took place about 1330. He obtained a great renown, and this has been maintained so that in that part of the country even yet, an expert surgeon is spoken of as an Yperman. He is the author of two works in Flemish. One of these is what Pagel calls an unimportant compilation on internal medicine, but the headings of the chapters as he gives them can scarcely fail to attract the attention of the modern physician. He treats of dropsy, rheumatism, under which occur the terms coryza and catarrh, icterus, phthisis (he calls the tuberculous, tysiken), apoplexy, epilepsy, frenzy, lethargy, fallen palate, cough, shortness of breath, lung abscess, hemorrhage, blood-spitting, liver abscess, hardening of the spleen, affections of the kidney, bloody urine, diabetes, incontinence of urine, dysuria, strangury, gonorrhoea and involuntary seminal emissions--all these terms are quoted directly from Pagel. All this would seem to show that Yperman was a {181} thoroughly representative medical man. When I add that Pagel says he shows a well marked striving to free himself from the bondage of authority and that most of his therapeutic prescriptions rest upon his own experience, it will be seen that he deserves the greatest possible credit. His work in medicine, however, Pagel considers as nothing compared to his work in surgery. A special feature of this is the presence of seventy illustrations of instruments of the most various kinds, together with a plate showing the anatomical features of the stitching of a wound of the head. The work as we have it is only a fragment. The last part of it which treated of the extremities is defective. If anyone thinks for a moment that surgery was a neglected specialty at the end of the thirteenth and the beginning of the fourteenth century, he should consult the text of this, or even Pagel's brief account of its contents. Some of the features of it are noteworthy. There is a chapter devoted to intoxications, which includes the effects of cantharides as well as alcohol, and treats of the bites of snakes, scorpions, and of hydrophobia due to the bites of mad hounds. There is scarcely a feature of modern surgery of the head that is not touched upon very sensibly in this work.