In reporting this case I am not unmindful of the fact that conclusions may not be drawn from a single observation; yet results were so prompt and even spectacular that I am prompted to call attention to the treatment used in order that others working in a larger field may try it out and, if found successful, render at least symptomatic relief to a class of patients at present more or less incapacitated.
A man, aged 30, a Mexican, first noticed some weakness in his left arm and hand about July, 1930. At that time his weight was 131 pounds (59.4 Kg.) and he was working as a stock clerk in a general store. This weakness and loss of power gradually increased with no periods of intermission up to the time he applied for treatment, July 6, 1933. On that date he tried to shift a keg of nails and