=Diagnosis=: The first consideration in the case is naturally tabes dorsalis, especially when one considers that the husband had signs which suggested syphilis of the nervous system. The rapid onset of the acute symptoms in this case, and the absence of the characteristic signs of pain were at least atypical for this diagnosis, as was the absence of any pupillary signs. Further, the W. R. was negative in the blood and spinal fluid; there were no definite signs of inflammatory reaction as shown by the other spinal fluid tests. These findings made a diagnosis of tabes entirely improbable. After tabes, the most frequent cause of the symptoms above enumerated is perhaps to be found in pernicious anemia. Examination of the blood showed that the patient had 2,500,000 erythrocytes per cmm. The hemoglobin by Tallquist scale was 80%. The smear was practically negative; no blasts could be seen. Although this picture is not a typical one for pernicious anemia, at least it is significant in the low number of red cells to be found, and as no causes for anemia were to be found, it seemed probable that we were dealing with a primary anemia. The diagnosis in the case, therefore, is spinal sclerosis of primary anemia. The mental picture was not uncharacteristic of PERNICIOUS ANEMIA. 1. Could the diagnosis be rendered in this case without a lumbar puncture? In the first place, the emaciation is not entirely characteristic. The pupils react normally to light. Probably such a case might well have been regarded as one of tabes dorsalis in former days, or even at the present time, if a lumbar puncture had not been resorted to. 2. Could this case possibly have been one of tabes dorsalis with negative spinal findings? Such cases have been reported frequently, but, unlike the present case, are apt to be of long-standing and non-progressive, in which the active inflammation is no longer present. The negative findings would not be consistent with tabes, in which the symptoms are of short duration and of sudden onset. 3. If the serum W. R. had been positive would the diagnosis have been neurosyphilis? We are loath to make the diagnosis of spinal syphilis when the spinal fluid is normal. Syphilis may produce a marked anemia, however, and thus produce symptoms such as shown by Mrs. Brown. It is even possible that such is the explanation of this case, taking into consideration the suggestive findings in the husband. However, there is insufficient evidence to make such an hypothesis rock firm, and we do not more than suggest it. =Atypical case of CONGENITAL NEUROSYPHILIS—peculiar mental state.=