Jens Peter Witt
X-beam pictures of the ventricular framework inside the cerebrum were acquired by infusion of separated air straightforwardly into one or both sidelong ventricles of the mind. Dandy additionally saw that air brought into the subarachnoid space through lumbar spinal cut could enter the cerebral ventricles and furthermore show the cerebrospinal liquid compartments around the foundation of the cerebrum and over its surface.