Additional experiments on the excitability of paralysed and healthy limbs by the galvanic current / by R. B. Todd, M.D., F.R.S. (Physician to King's College Hospital).

  • Todd, R. B.
Date:
1853
Catalogue details

Licence: Public Domain Mark

Credit: Additional experiments on the excitability of paralysed and healthy limbs by the galvanic current / by R. B. Todd, M.D., F.R.S. (Physician to King's College Hospital). Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    ADDITIONAL EXPERIMENTS ON THE EXCITABILITY OF PARALYSED AND HEALTHY LIMBS BY THE GALVANIC CURRENT. R. B. TODD, M.D., F.R.S., PHYSICIAN TO KING'S COLLEGE HOSPITAL. Received June 28th.—Read June 28th, 1853. In the summer of 1847 I ventured to submit to this Society the results of some experiments made with the view of ascertaining whether limbs paralysed in consequence of the removal of the brain's influence upon them were more excitable by the galvanic stimulus than healthy limbs whose muscles still remained in connection with the centre of volition. In pursuing this subject subsequently, as opportunities ottered, I found that my observations justified my adhering to the general views expressed on that occasion as to the modus operandi of the galvanic current when transmitted through the limbs, and furnished me with some additional facts which I am desirous of laying before the Society as a sequel to my paper already referred to. I shall first give an account of the results of my ob- servat.ons on the transmission of the galvanic current hrough the limbs of healthy subjects, both in man and the lower animals. A Cruickshank's battery of fifty pairs of plates, each plate ^eing about two inches square, charged with dilute sulphuric XXIII. . £