Artificial swimming-pools have been regarded with skepticism by the fastidious, but the possibility of infection of the water by typhoid carriers brings to the fore a more important question. Colleges have been concerned for the safety of their students mingling in a common bath, and the same conditions prevail in club and public swimming-tanks in most large cities. Swimming as an indoor and winter sport is popular and deservedly so, but at present the popularity of swimmingtanks is ahead of their hygiene.
That typhoid might be acquired in them would seem. possible, as water is taken into the mouth at times and sometimes unintentionally swallowed. While usually the organisms found in these tanks will be only those normal to the water supplying them and those likely to be introduced, some pathogenic organisms have been found. Studies less complete than were planned were made during the year at the large modern