Dissection of the brain, in situ, in 6 numbered illustrations. Brain shown with dura mater in place, and with dura mater divided and reflected to shown cranial sinuses, lateral views. Brain shown with cerebellum reflected forward to show brainstem, cranial nerves, posterior cranial fossa, antero-superior view. Brain shown with cerebellum removed, hemispheres reflected backward to show olfactory nerves, posterior cranial fossa, lateral view. Illustrations of the brainstem and cerebellum shown in isolation.