2. How shall we explain the changes in pupillary reaction in this case? They cannot yet be explained. A few observers have reported changes in pupillary reflexes in the direction of normality. In our experience such changes have not been noted. It cannot be too strongly emphasized that it is very easy to make errors in judging pupillary reaction if care is not used. For instance, if the patient is accommodating for near vision, light will probably not cause contraction. A frequent cause of error in testing the light reflex arises from using a weak electric light. An electric flash-light is much less efficient than daylight. Probably the most satisfactory method is to take the patient to a window, ask him to look at a distant object, shade the eye with the hand, remove hand, and observe.

3. What is the chief triad of symptoms in Huntington’s chorea? (1) Choreiform movements associated with (2) progressive mental enfeeblement, (3) occurring in a patient whose family history shows a similar condition in a preceding generation.

Differential diagnosis between NEUROSYPHILIS and SENILE ARTERIOSCLEROTIC PSYCHOSIS.

Case 73. Marcus Chatterton was a retired sea captain, 75 years of age. At the age of 71, he had had a seizure with a slight right hemiplegia and inability to talk. He had been slightly confused for a short time but had rapidly recovered. During the intervening four years, there had been three similar attacks, and the last one had caused him to come to the hospital. He was, in fact, confused upon admission but had become perfectly clear by the next day. There was a considerable memory defect, which the patient himself did not entirely appreciate. Possibly his judgment had been deteriorating slightly. He had been irritable of late and sometimes sleepless.

Physical examination showed a rather well preserved man with but slight senile changes. The pupils were equal and reacted readily to light and accommodation. There was no sensory disorder and no disturbance of coördination. There were no tremors. The systolic blood pressure was 205, the diastolic 135. The arteries were sclerotic upon palpation. A sufficient diagnosis would have seemed to be arteriosclerosis, and the hypothesis of syphilis would hardly have been raised off-hand by most practitioners. The W. R. of the serum was negative. What led to lumbar puncture in this case was the fact that the sea captain’s wife had died 15 years before of general paresis. The lumbar puncture was rewarding since the W. R. was positive. There was an increase of albumin and globulin, a “paretic” type of gold sol reaction, and 56 cells per cmm.

Accordingly, we must regard the condition as one of neurosyphilis. Perhaps the arteriosclerosis was of syphilitic origin. If this is a case of general paresis as we suppose, it is one of very long-standing syphilis.

1. Do delusions of grandeur in the senile period suggest syphilis? Not necessarily; it appears that there is a small group of senile cases which might be called cases of senile pseudoparesis in which extravagant delusions of grandeur are entertained, and in which frontal atrophy is found although entirely without evidence of chronic inflammation. It has not been proved that these cases are of syphilitic origin. It is suggestive that the site of the most extensive lesion is precisely the site of the most extensive lesion classically found in paretic neurosyphilis, viz., in the frontal regions.

2. Is neurosyphilis frequently found in both mates? It can hardly be said that this is a usual finding. However, it is far from rare, and it occurs frequently enough to be used in support of the theory that there is a special strain of spirochete that has a predilection for nervous tissue. It must be remembered, however, that the wives of syphilitics are frequently infected without being aware of it. In such cases they receive no treatment and consequently have a larger chance of developing neurosyphilis. It is a good rule to consider the mate of every syphilitic a candidate for neurosyphilis.

An atypical case of recurrent dazed states resembling HYSTERICAL FUGUES. Probably an instance of NEUROSYPHILIS.

Case 74. Abel Bachmann, a man of 40 years, remains doubtful and perhaps belongs to the still unresolved group of mental cases due to syphilis that cannot be placed in any of the well-known categories. Bachmann had been found by the police, working in front of a cowbarn without the consent or even the knowledge of the owner. Bachmann had, in fact, spent the night in the cowbarn and was working with the idea of paying for his night’s lodgings. The situation struck the police as so peculiar, and Bachmann was so confused and irresponsive, that he was brought to the Psychopathic Hospital. The afternoon of his admission, however, he entirely cleared up and was able to give a good account of himself.