Page:Medical Inquiries and Observations Upon the Diseases of the Mind - Benjamin Rush.djvu/281



Of Derangement in the Memory. This disease is attended with the following grades: 1. There is an oblivion of names, and voca- bles of all kinds. % There is an oblivion of names and vocables, and a substitution of a word no ways related to them. Thus I knew a gentleman, afflicted with this disease, who, in callmg for a knife, asked for a bushel of wheat 3. There is an obUvion of the name of sub- stances in a vernacular language, and a facility of calling them by their proper names in a dead, or foreign language. Of this Wepfer relates three instances. They were all Germans, and yet they called the objects around them only by Latin