This series of addresses on live neurologic subjects, each by a man whose name is not only internationally known but also identified with recent research in the topic in question, constitutes one of the most remarkable collections of authoritative monographs yet published. Each contains a review of the whole question treated, prepared for a general medical audience and therefore of interest to every physician. The addresses are on progressive lenticular degeneration, by Wilson; cerebral tumors, by Chatelin; serous meningitis, by Claude; sensory disturbances of cerebral origin, by Roussy; spinal cord traumatisms, by Guillain; epidemic (lethargic) encephalitis, by Lhermitte; paralysis agitans, by Souques; infantile encephalopathies, by Babonneix; syphilitic muscular atrophies, by Léri; exophthalmic goiter, by Sainton; algias and their treatment, by Sicard; atypical familial nervous disease, by Crouzon; pupillary modifications, by Poulard; medullary automatism, by Foix; thyreogenous psychoses, by Laignel-Lavastine; minor mental syndromes, by Vurpas; chronaxis, by Bourguignon; traumatic epilepsy, by