A treatise on the diseases of the nervous system / by William A. Hammond; with the collaboration of Graeme M. Hammond.

  • Hammond, William A. (William Alexander), 1828-1900.
Date:
[1891], ©1891
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on the diseases of the nervous system / by William A. Hammond; with the collaboration of Graeme M. Hammond. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    terical conditions it is extremely valuable. If only one battery can be procured, tbe faradaic instrument will be found more generally useful tban any other; but, if possible, the physician who intends to treat to the utmost advantage diseases of the nervous system, should possess one of all three kinds mentioned. THE MILLIAMPEEEMETEE. This instrument, a representation of which is given in Fig. 2, is used to determine the rate of the current flow, or the quantity of electricity which passes through that part of the individual which is included in the circuit of the galvanic current. The milliampere- meter is a galvanometer so constructed that the deflections of the