154 Journal of Comparative Neurology. 



The method of staining is, in the author's experience, too 

 restricted, for while it brings out the basophiUc structures, the 

 neutrophihc and acidophiHc relationships of the different proto- 

 plasmic portions of the cell body and nucleus are not shown. 

 Following Flemming, Benda and Levi the compound tinctures 

 might be used to better advantage in the study of the normal 

 nerve cells and further in diseased tissues. 



Zoological Laboratory, Columbia University, Jan., 1897. 



EXPLANATION OF FIGURES. 



PLATE XII. 



Fig. I. Cross section of cord of Necturus. 



Fig. 2. Nucleus of ependyma cell. 



Fig. 3. Cell in cord about level of the nth or 12th N. 



Fig. 4. Nucleus of nerve cells of predominant type. 



Fig. J. Cross section of medulla, loth N. ? 



Fig. 6. Cell of 7th N. nucleus. 



Fig. 7. Cross section of mesencephalon. 



Fig. 8. Nerve cell of mesencephalon. 



PLATE XIII. 



Fig. A. Cross section cat's cord. Normal size. Cervical. 



Fig. B. Fixation, acohol 95^, formalin 200^; equal parts. 



Fig. C. Fixation, alcohol, 95^; also ale. sat. solut. corrosive sublimate. 



Fig. D, Fixation, formalin, 20f;^,. 



Fig. E. Fixation, absolute alcohol. 



Fig. F. Fixation, Flemming's and Hermann's solutions. 



