The epidemic of meningitis at Camp Jackson will be reported in detail at a later time. It seems profitable to bring to general notice some of the peculiar features of the epidemic and some of the methods used to arrive at an early diagnosis, along with certain modifications of treatment that have proved valuable. Over 140 cases have been observed and classified as abortive, ordinary and fulminating. The last have generally shown extensive purpura, with death in from four to ten hours, without the clinical or necropsy findings of meningitis. The disease is not primarily a meningitis. It is a generalized systemic invasion by the meningococcus-a sepsis — with possible secondary involvement of the meninges, joints, pericardium, endocardium, testicles, conjunctiva, sclera, pleura, lungs, from all of which regions, in addition to the tonsils and pharynx, the micrococci have been isolated. In many cases the systemic symptoms appear from twenty-four to