SURGERY

arm and leg, with astereognosis on that side ; diminution of sensibility to painful stimuli, heat, and cold from the shoulder downwards all over the right side ; and partial sensory paralysis of the left arm. He had, in fact, in typical form the symptoms known as the BrownSequard syndrome. The patient's general condition was very much enfeebled, but his intellectual faculties were unimpaired. An intra-duralextra-medullary tumour pressing on the left side of the cord was diagnosed. At the operation the arches of the third and fourth cervical vertebra) were removed. The dura was opened, and nothing