on Muscular Motion . 
11 
other. When he looked at an object, it was perceived by a 
by-stander, that the two eyes were not equally directed to it. 
The complaint was most violent in the morning, and became 
better after dinner, when he had drank a few glasses of wine. 
It continued for nearly a twelvemonth, and gradually went 
off. 
The above account of the disease was given to me by the 
patient himself, who is an intelligent man, very soon after his 
recovery. It was considered as a curious disease, and I had 
several conversations with Mr. Ramsden respecting it. The 
more we considered it, the more we were convinced that the 
disease had been entirely in the muscles ; and this I explained 
to the patient at the time as my opinion. 
It is now about eight years ago, and the gentleman has had 
no return of the disease ; but for two or three years past has lost 
in a great measure the use of his lower extremities, being un- 
able to walk alone. 
Some time after the recovery of this gentleman, a house- 
painter, who had worked a good deal in white lead, was admit- 
ted a patient in St. George's Hospital, on account of a fever, 
attended with a violent headach. Upon recovering from the 
fever, he was very much distressed at seeing every thing dou- 
ble ; and as the fever was entirely gone, he was put under my 
care for this affection of his eyes. Upon an inquiry into his 
complaints, I found them exactly to correspond with the case 
I have just described, and therefore treated them as arising 
entirely from an affection of the muscles. I bound up one eye, 
and left the other open ; he now saw objects single, and very 
distinctly, but looking at them gave him pain in the eye, and 
brought on headach. This led me to believe that I had erro- 
C 2 
