The purpose of this paper is to present two cases of polyneuritis, which, so far as I know, present features which are unusual and appear to me to be of much interest. In the first case the patient had the added distinction that he had two attacks, in some respects alike, at intervals of thirteen years. Case 1.—History. —A. R., aged 13, of a healthy family, was seen Jan. 3, 1891. He gave a history of having ached all over for four weeks, of his face being drawn to the left side for three weeks, and of pains in his face and limbs. Examination. —When I saw him he still suffered sufficiently to disturb his night's rest. He had double facial paralysis. The upper and lower branches of the seventh nerves were affected, but the paralysis was not complete, as the eyes could be feebly closed. The electrical reaction