Finally, in the great Edinburgh _Encyclopædia Medica_, 1900, Volume 4, Greville MacDonald, of London, in the article on Hay Fever, seems to know nothing of the gouty theory and says innocently at the end of the article, "No special dietary is indicated, seeing that these patients present no tendency to lithæmia, etc." He makes the extraordinary suggestion that, in relieving the attack of hay fever, "rather than give the patient cocaine, it might be wise to allow the opium pipe." In the early prescriptions for hay fever, opium sprays and nasal douches were common enough, but this is the only time I ever heard a reputable physician and a teacher, at that, advising a patient to "hit the pipe." I think that, from the evidence examined, we may say that British and American authors know nothing of de Mussy and his theory. Next, I looked up the gout authorities, Ewart, Ebstein, Garrod, Falkenstein, Lancereaux, Lecorche, each of whom wrote a bulky treatise on Gout, but there is never a word on Hay Fever. =De Mussy in Germany.= For many years, whenever I have wanted to know anything from the bottom up, historically, linguistically, philosophically, I have turned to a German book and have always found what I was looking for, if it is known to man. Where an American or British author will skim over or touch a subject carelessly, not seeming to care where the idea comes from or its relation to other ideas in different times or countries, a German will plow steadily through the matter from Hammurabi to Wilhelm III and lay bare all the collateral tributaries and branches, always with an index at the end. First I tried Heymann's _Handbuch der Laryngologie und Rhinologie_ (Wien, 1900) and found hay fever described in the article on _Die Nasalen Reflexneurosen_, by Professor Jurasz in Heidelberg; but there was no mention of gout. By this, I was truly convinced that nothing was known on the subject. If a Heidelberg Herr Professor does not know it, it does not exist. And "Professor Jurasz in Heidelberg" had failed me. However, looking further in Heymann, my faith in German thoroughness and all-inclusiveness revived. Hay fever appears also in the article on Acute Rhinitis, by P. H. Gerber, of Königsberg, and here, on page 371, we find a complete "Literatur" spread out in true Teutonic style from Bostock to date. However, Gerber does not discuss the matter of gout in the text, but says merely, "Recently Bishop asserts that the nervous disturbances of hay fever are due to an excess of uric acid in the blood." The gouty theory of hay fever receives scanty recognition from most German writers. Strümpell does not mention it. In his _Handbuch der Specielle Pathologie und Therapie_, Berlin and Wien, 1904, Eichorst says skeptically, page 326, "It has been stated often that gouty families are especially apt to develop hay fever," and on page 330 "Grote saw hay fever patients of gouty families cured (?) by a course of waters at Neuenahr."