Acute hydrocephalus first described.

Cheyne’s important book deals mainly with the lesions of croup.

Cheyne believed that cerebral anemia might be the cause of apoplexy, and described pathological cases of cerebral infarction and of cerebral hemorrhage. The work contains the first illustration of a subarachnoid hemorrhage.

First accurate description of the condition which later became known as “Cheyne–Stokes respiration.” Reprinted in F. A. Willius & T. E. Keys: Cardiac classics, 1941, pp. 317-20.