Vienna, April 16, 1912.
To the Editor:
—Vienna always impresses the returning American as something fixed and unchanging. Men may come and go, but the old landmarks rarely alter. I saw the other day a picture of the Allgemeines Krankenhaus made in 1790, from one of the north windows of what is now the laboratory of the Fuchs eye clinic. This view is little different from what it is to-day. Every building in the first Hof is the same as now, even to the arrangement of minor details, such as windows and chimneys. Outside the Krankenhaus, however, the green fields of 1790 are now built up solid. But Chicago in much less than this time has changed from an Indian hunting—ground to a city one-fifth larger than the Vienna of to-day.Osler, coming back here in 1908, after an absence of thirty years, found the hospital no different, the