Materials for the study of secondary degeneration in the spinal cord after transverse injuries

All my experiments were carried out on dogs. I stopped at these animals in view of the fact that in terms of topographic relations, their spinal cord is closer to the human; this circumstance gives more guarantees not to fall into a gross error when comparing the results obtained with those of people. At the same time, only adult dogs were taken for the experiments, in which the process of development of the central nervous system could be considered completely complete. This condition was essential for my goals, since I set myself the task of studying secondary regeneration on fully developed brains. In addition, the question of the beginnings and consistency of the development of secondary degenerations of individual systems in the spinal cord of dogs, specially put into the program of my study, also required the observance of the indicated conditions.