Epilepsy and other convulsive affections : their pathology and treatment / by Charles Bland Radcliffe.
- Charles Bland Radcliffe
- Date:
- 1858
Licence: Public Domain Mark
Credit: Epilepsy and other convulsive affections : their pathology and treatment / by Charles Bland Radcliffe. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![]3 all they are heated to incandescence for half a minute in the flame of a Berzelius’ lamp. Great precautions are necessary, moreover, to preserve as ■well as to procure this homogeneity. A transitory current may be produced by the immersion of homogeneous plates, if the immersion of the plates of the two electrodes be not absolutely simul- taneous ; and to prevent this source of confusion, the plates of each electrode are kept continually immersed in the saline solution. A current might also arise from different conditions of different parts of the same plates if these plates were only partially immersed in the solution; and to obviate this difficulty, the parts above the solution are kept continually moistened by being wrapped in pieces of blotting paper of which the lower portion is immersed in the solution. Each electrode is fur- nished with two plates, partly to increase the surface by which any current may be able to enter the coil, and partly as an additional precaution against heterogeneity in the plates themselves,— for it is found that this cause of disturbance is less likely to operate when two plates are used than when only one plate is used. The cushion of blot- ting-paper is about 1-25 of an inch in breadth, and 2 inches in length, and when swelled out by absorb- ing the solution—about O'5 of an inch in thickness. It is always soaked in the solution in which its lower](https://iiif.wellcomecollection.org/image/b2231460x_0027.jp2/full/800%2C/0/default.jpg)
