THE LIPIODOL TEST FOR PATENCY OF THE CEREBRO-SPINAL CANAL IN A CASE OF SCIATICA (?) WITH UNUSUAL FEATURES

History. —On July 25, 1924, Mrs. W. L., aged 35, came to the Western Hospital, complaining of inability to sit or walk on account of severe pain across the lower part of the back and down the right leg. In May, 1923, she had pain across the middle of the back. She received massage for two weeks, and her condition improved. The following August, she went swimming, and the pain returned. She was then sent to a hospital, with a diagnosis of lumbago and sciatica. She stayed there for six weeks, returned home unimproved and remained in bed until after January l, when she made some effort to walk. For a few days, she was able to get to the front door and back once daily, but she found the strain too great, so ceased to try. It was during these efforts that she noticed that the toes of