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Description

Figs. 1-4 in text:

'1. ... The nucleolus is well defined. The chromatic masses have completely disappeared from the greater part of the cell, and are localised round the nucleus. It is noteworthy that the Nissl bodies retain their form as discrete inasses, the part of the cell which staius red has a distinctly striated character. In cells generally similar the processes may be present or absent (see plate).

2. Other cells have a similar appearance except that the blue masses are broken down into the form of a fine powder (Fig. 2).

3. Similar to above but nucleus absent (Fig. 3).

4. Cell increased in volume without a vestige of the colouring matter, it has a rather hyaline appearance and the nucleus is absent (Fig. 4).

5. Lastly, there are a number of cells possibly indicating the initial change. At one point in the periphery there is a chromatolysis resulting in the appearance of a reddish zone; the nucleus is a trifle eccentric and the rest of the cell shows the ordinary Nissl bodies. It could not be definitely settled whether the place at which this process commenced was the origin of the axis cylinder, but certainly a good many cells were found which strongly suggested this (Fig. 1).' (115-116)

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