STRUCTURAL ALTERATIONS IN NERVE CELLS 199 
bodies retain their form as discrete masses, the part of the cell which stains 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). 
Fig. I 
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. i). 
