The title of this book gives hardly a fair indication of its contents. It discusses the medical and sociological aspects, not of malarial psychoses and neuroses alone, but of malarial infections generally. One chapter is related to malaria, another to malaria in history, and a third to the effect of malaria on character and on race degeneration. The malarial parasite, the pathology of malaria and the clinical pathology of the parasympathetic, sympathetic and endocrine glands are discussed in three chapters. One chapter is devoted to latent malaria, one to periodicity, one to malaria and alcohol, one to surgery and malaria, and one to treatment. Chapters are devoted to coma, stupor and delirium, conditions not necessarily associated with psychoses and neuroses but symptomatic of various other disorders. One chapter is devoted to amnesia. Three chapters are devoted to a discussion of malarial nerve conditions, covering such disorders as meningitis and signs