(1) Some Problems in Epilepsy. Timme, W. (2) The Ecology of Epilepsy. Dana, C. L. (3) Epilepsy and the Convulsive State. Kennedy, F. (4) Convulsions Experimentally Produced in Animals Compared with Convulsive States in Man. Elsberg, C. A., and Stookey, B. P. (5) Experimental Convulsions: A Consideration of the Epileptogenous Zones of the Central Nervous System. Pollock, L. J. (Arch. of Neur. and Psychiat., May, 1923.) (6) The Psyciwbiologic Concept of Essential Epilepsy. (Journ. of Nerv. and Ment. Dis., May, 1923.) Clarke, L. Pierce.