with radiation of the insult to the sensory tracts. In cases with pure lesion of the motor tracts this sign tends to disappear after a few days. In lesions close to the thalamus, there is a tendency for the hemianesthesia to persist.1 Among our observations there have been many cases in which this has been the only sign of hemiplegia. In one case of what looked like a spasm of the cerebral vessels with transient right sided hemiparesis