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To the Editor:—
The lead article in The Journal, Nov. 19, 1955, page 1175, contains many errors in history, fact, spelling, and English usage. For example, in the first paragraph, "Jallibert first induced muscle contraction by electric spark in 1732. Thus began the use of electrical currents in the diagnosis of neuromuscular disorders." The man's name was Jallabert; many had contracted muscles with the spark before him; he first applied the spark to muscle on Dec. 26, 1747; he was not a physician; he never used electricity for diagnosis nor did anyone even mention such a possibility in his lifetime. In the same paragraph, "In 1786 Galvani produced muscle contraction by the constant current"; Galvani used the spark, since Volta's discovery of the constant current and its production, as well as its announcement, were all made after Galvani's death. In this article the upper limit of the normal chronaxy is
Licht S. DIAGNOSTIC METHODS IN PHYSICAL MEDICINE. JAMA. 1956;160(1):76. doi:10.1001/jama.1956.02960360078024