The science of physiognomy belongs to those disciplines which show a decided variability in their value. In classical times it was set much store by, and Socrates, Plato, Aristotle, and Pythagoras were keenly interested in its doctrines. Later on it was forgotten, was studied in passing when Baptista Porta wrote a book about human physiognomy, and finally, when the works of Lavater and the closely related ones of Gall appeared, the science came for a short time into the foreground. Lavater’s well known monograph[108] excited great attention in his day and brought its author enthusiastic admiration. How much Goethe was interested in it is indicated in the popular book by Von der Hellen and the exchange of letters between Goethe and Lavater. If Lavater had not brought the matter into relation with his mystical and apodictic manner, if he had made more observations and fewer assertions, his fame would have endured longer and he would have been of some use to the science; as it was it soon slipped from people’s minds and they turned to the notorious phrenology of Gall. Gall, who to some degree had worked with his friend Spurzheim, committed the same error in his works[109] as Lavater, inasmuch as he lost himself in theories without scientific basis, so that much that was indubitably correct and indicative in his teaching was simply overlooked. His meaning was twice validated, once when B. v. Cotta[110] and R. R. Noel[111] studied it intensively and justly assigned him a considerable worth; the second tune when Lombroso and his school invented the doctrine of criminal stigmata, the best of which rests on the postulates of the much-scorned and only now studied Dr. Gall. The great physiologist J. Müller declared: “Concerning the general possibility of the principles of Gall’s system no a priori objections can be made.” Only recently were the important problems of physiognomy, if we except the remarkable work by Schack,[112] scientifically dealt with. The most important and significant book is Darwin’s,[113] then the system of Piderit[114] and Carus’s “Symbolik,”[115] all of them being based upon the earlier fundamental work of the excellent English anatomist and surgeon, Bell.[116] Other works of importance are those of LeBrun, Reich, Mantegazza, Dr. Duchenne, Skraup, Magnus, Gessmann, Schebest, Engel, Schneider, K. Michel, Wundt, C. Lange, Giraudet, A. Mosso, A. Baer, Wiener, Lotze, Waitz, Lelut, Monro, Heusinger, Herbart, Comte, Meynert, Goltz, Hughes, Borée,[117] etc. The present status of physiognomics is, we must say, a very subordinate one. Phrenology is related to physiognomics as the bony support of the skull to its softer ones, and as a man’s physiognomy depends especially upon the conformation of his skull, so physiognomics must deal with the forms of the skull. The doctrine of the movement of physiognomy is mimicry. But physiognomics concerns itself with the features of the face taken in themselves and with the changes which