The amount of useful information of the medical profession has increased from generation to generation, especially in the last fifty years. The members of the medical profession are guardians of this great fund of knowledge, which should be used to its fullest extent for the good of mankind. The dissemination of this knowledge and its actual application to the relief and prevention of suffering constitute a continuous problem. Improvements in treatment and new discoveries are constantly being made, so that it is necessary for all physicians to continue to study if they hope to fulfil their trust and give the best possible medical service.
The store of professional knowledge is in the medical schools, the health departments, the medical libraries and hospitals, and the minds of highly educated physicians. The agents for disseminating this information so that it may become an actual force in improving the community health are the