228 
THOMPSON YATES LABORATORIES REPORT 
The lesion, though primarily peripheral, may be followed by secondary changes in those cells of 
the spinal cord or of the posterior ganglion [vide Lagaro*) whose axons have suffered a destruction 
of continuity. 
Note on post-mortem changes. — Our experience with the Nissl stain enables us to believe 
that wiien moderate precautions have been taken, the material from the autopsy room gives fairly 
reliable results. The manner in which the smaller cells stain is often uncertain, even in perfectly 
fresh tissues ; but the larger cells of the spinal cord and cranial nuclei seem, with the exception 
of shrinkage, to retain their normal characteristic staining features for a considerable time after 
death. 
In control examinations or the spinal cord made for the purpose of this paper, no cells 
comparable to those above described and figured were found. 
Barbacci and CAMPACCit have investigated in a rabbit the condition of the spinal cord 
cells at varying periods after death, and their descriptions indicate a quite different appearance to 
anything found by us. 
DESCRIPTION OF Figs, i, 2, and 3. 
Fig. I. — Posterior interosseous nerve (Osmic stain) x ^.50. 
Fig. 2. — An .interior root (Weigert-Pal stain) x 4.50. 
Fig. 3. — Normal muscle spindle surrounded by degenerated muscle (Weigert-Pal and Eosin stain) 
X 1000. 
* 'Rivista <li Patologia nervosx e mentale,' 1897. t Bai bncci and Campacci, ' Referat Neurol. Centralb.,' p. 1042, 1896. 
