The National Association for the Study and Prevention of Tuberculosis has collected evidence showing that well-conducted sanatoriums, dispensaries and camps for sufferers from tuberculosis are not detrimental to any community; that, on the contrary, their presence tends rather to enhance than to depreciate its property values. Recently, the subject has been studied, continuing an investigation conducted four years ago by William H. Baldwin,1 of Washington, D. C., and for a summary of this study we are indebted to the Survey. Thirty-seven institutions were considered, and these were located in twenty-two states, as diverse in situation as Maine and California, as Oregon and Georgia. According to sanatorium authorities, real estate agents, as well as various disinterested people, more than 67 per cent, of these sanatoriums have favorably influenced the property surrounding them, and have otherwise benefited their respective communities. Twenty-three (62.2 per cent.) of these institutions helped definitely to increase