The question of the susceptibility of the nervous system for training has recently been discussed. It is believed that nerves can be cultivated. AccordIng to the most eomprehensive opinión, , great deal depends on the owner of the nerves. It is possible to train certain classes and conditions, while others are hopelessly unsusceptible. The will of the individual, the pliability, or rather the impressionabillty, has everything to do with successful nerve training. As a matter of fact, the desire to te trained must be present flrst of all. It comes from wlthin, and, prompted by the desire of the individual, a course of training may bring about the happiest results. Training nerves against the will of the patiënt reminds one of the old adage of convincing a man against nis will - "He is of the same opinión still."