On Certain Conditions of Nervous Derangement is a book written by William Alexander Hammond, a renowned American neurologist and psychiatrist. The book delves into various conditions of nervous derangement, including somnambulism, hypnotism, hysteria, and hysteroid affections, among others. Hammond provides a comprehensive analysis of each condition, detailing their symptoms, causes, and possible treatments. He also explores the relationship between these conditions and the human mind, discussing the effects of suggestion, imagination, and emotion on the nervous system. The book is written in a clear and concise manner, making it accessible to both medical professionals and lay readers. It is a valuable resource for anyone interested in the study of the human mind and the complex workings of the nervous system.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.