COOPERATIVE RESEARCH: A CASE REPORT.

It is felt by the workers concerned in this cooperative venture that the real effort is just beginning. The hopefulness of undertaking to find arsenical and mercurial organic compounds which might be better than anything yet known for the treatment of syphilis of the central nervous system has been justified, and this is provoking greater optimism for the furture. So much promising study is in sight that enthusiasm among the group in increasingly evident at each meeting. It is hoped that this plain recital of the story of a working cooperative scientific research, with its implied disppointments and reverses, as well as with its successes, may prove to be the needed stimulus to the inauguration of similar efforts elsewhere.