The human brain : histological and coarse methods of research : a manual for students and asylum medical officers / by W. Bevan Lewis.

  • Lewis, William Bevan, 1847-1929.
Date:
1882
Catalogue details

Licence: Public Domain Mark

Credit: The human brain : histological and coarse methods of research : a manual for students and asylum medical officers / by W. Bevan Lewis. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

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    the freezing microtome, afford us much information upon histo-chemical examination. The elements may thus be treated by osmic acid, salts of gold, platinum, and silver, and a variety of dyes. For examination of the reactions with chemical reagents, I have found it useful to obtain the faintest tint by aniline, just sufficient, indeed, to bring into view the outline of the cells and their nuclei. For this pur- pose a few drops of very weak aniline dye, left on for a few minutes, and then washed off, may be fixed in the germinal centres by a di'op of extremely dilute hydrochloric acid, which is immediately cleared off by water, and the film left in a satisfactory state for noting the effect of reagents.