Chicago, July 23, 1906.
To the Editor:
—As the hay-fever season approaches, physicians are interested in any remedy which promises to give their patients relief. Much has been published during the last three years of the treatment devised by Professor Dunbar, and many physicians have given it an extensive trial, I among the number; but I cannot subscribe to the extravagant statements that have been made in its favor.Three years ago I tried the serum on several patients, but without effect. Year before last I tried the pollantin powder (the dried serum) in a number of cases, and in only one did I get a report that it had done good.At the 1905 meetings of the American Laryngological Association and of the Americal Laryngological, Rhinological and Otological Society, the subject of the treatment of hay-fever by these remedies was under discussion. In each of these meetings there were