PROCEEDINGS OF THE SECTIONS. 185 
obtainedfrom him. There was p g 
conservation of new impressions. He did not even recognize the 
medical officers as they visited him from day to day, and though 
he read the newspapers, he had no idea what they contained. 
Six months afterwards he was more intelligent, could remember 
the names of and recognize people he saw frequently, and gave 
delusions were somewhat less prominent, his memory for distant 
events was much better, but all his medical knowledge had abso- 
lutely vanished, and the impression made by current events was 
so slight that it seldom lasted beyond three or four days. 
After this times troubl ulcerati ppeared in various 
parts of the body, which were evidently syphilitic and yielded to 
iodide of potassium. There has been no further mental improve- 
ment, and no retrogression. He is now at Callan Park, and is 
As a preliminary to discussing the pathology of the cases the 
notes of which I have read, it is necessary to point out, first, that 
amnesia due to old age, or accompanying the dementia of chronic 
rain disease. In these conditions forgetfulness, limited at first 
