Kleist's volume on the pathology of the brain is the most extensive recent work on the subject and is second only to Henschen's "Klinische und anatomische Beiträge zur Pathologie des Gehirns" as a source book for case material. Almost all the cases, numbering about two hundred and eighty, are those of patients whom Kleist saw during the World War, but the nature of the disorders and the pathologic observations in these cases, in which the injuries were chiefly cortical, are considered in relation to the conditions which Kleist or other investigators saw in civil practice.
The first sections of the book are on motor and sensory disorders. They are followed by chapters on apraxia and visual and auditory disorders and a long discussion of the aphasias. The final sections cover disorders resulting from lesions of the frontal lobe and of the basal ganglia.
The system which Kleist presents throughout is