In his travels in Germany, from 1805 to 1807, accompanied by Dr. Spurzheim, "I experienced everywhere (said Gall) the most flattering reception. Sovereigns, ministers, philosophers, legislators, artists seconded my design on all occasions, augmenting my collection, and furnishing me everywhere with new observations. The circumstances were too favorable to permit me to resist the invitations which came to me from most of the universities." Thirty-four of the leading cities and seats of learning enjoyed the visits of Gall and Spurzheim before they settled in Paris, where, although French jealousy arose against this German invasion, and the influence of Napoleon prevented their cordial reception, they nevertheless commanded and retained the respect of scientists and had many devoted friends, including Broussais and Andral, who then stood at the head of the medical profession, and of Corvisart, Napoleon's physician, who could not overcome his master's prejudice. In speaking of the great void left by the decease of Gall and Spurzheim, I do not forget that for a few years George Combe, Dr. Elliotson, and Dr. Macartney, of England, and Dr. Caldwell, of America, survived, but these eminent gentlemen were not so identified with the science, or so competent to sustain it as to wear the mantle of its founders. My own labors beginning after the death of the founders were those of investigation and discovery, and never to any great extent those of propagation. Indeed, for twenty years I entirely abandoned the scientific rostrum, and almost ended my labors, feeling that my duty had been done in the way of development and demonstration. But in accordance with the great law of periodicity, I resumed my labors in 1877-78. When we look at the doctrines of Gall and Spurzheim in the light of positive science and philosophy, our first observation is that they fell very far short of revealing the entire functions of the brain, and discovering in it all the important spiritual and physical faculties and energies of life. They did not attempt to explore the brain as a physiological organ, and determine how or in what special organs it controls the physiological functions. These may be regarded as one half, though the lower half, of its capacities, out of which arises a vast amount of medical philosophy. As to the psychic half of the cerebral functions, they omitted entirely that portion which relates to pneumatology. They thought nothing of the soul as an object of science, and made no attempt to trace its connection with the brain, and the vast number of phenomena which lie along the border line between the physical and spiritual, and which are conspicuous in the phenomena of somnambulism, sleep, dreaming, hypnotism, spiritualism, clairvoyance, trance, ecstasy, and religious marvels.