The two cases described in this paper are considered atypical forms of Friedreich's disease. The unusual feature in each case is the presence of exaggerated patellar and achilles reflexes, associated with clonus and a positive Rossolimo sign. This report offers some corroboration of the contention that a spastic form of Friedreich's disease exists. In considering the differential diagnosis, the validity of a diagnosis of Friedreich's disease in the presence of exaggerated patellar and achilles reflexes will be indicated. REPORT OF CASES Case 1.—History. —Joseph H., aged 17, came to the outpatient neurologic service of the Illinois Research and Educational Hospitals in October 1933, complaining of difficulty in walking and unsteadiness of the hands. There was no history of disease of the nervous system in the mother's family. A cousin—a son of a paternal aunt—aged 29, was stoop-shouldered and stumbled and staggered in walking; sometimes he shook all over and