Conscious that Comparative Mythology is not very generally studied even in England, where some of the earliest and ablest expositions of its principles have appeared, I foresee that this work is likely to fall into the hands of many who have not the preliminary intellectual training necessary to an appreciation of its principles. If anyone takes up the book with an idea that it will settle anything in the history of the Jews, he will be disappointed. Its aim is not theological nor historical, but mythological; and Mythology precedes History and Theology, and has nothing to do with them, except as a factor that may to a certain extent determine their form. To understand this book fully, some previous knowledge of what has already been done on the field of Comparative Mythology is essential. This is easily obtained by reference to the various works of Prof. Max Müller and Rev. G.W. Cox, which are frequently quoted.[1] Such studies will enable the reader to see how far Dr. Goldziher is merely treading in the footsteps of others, and how far he has struck out a new track. Speaking generally, it may be said that he acknowledges the principles of the science as laid down by Kuhn and Max Müller, but that the application to the Semitic nations is his own. This application was, indeed, first attempted, fifteen years ago, by Professor H. Steinthal of Berlin with reference to one special mythological cycle, in Essays which, on p. xxix of his Introduction, Dr. Goldziher urgently recommends the reader to study as a suitable preparation for this book, since they ‘showed for the first time and on a large scale how the matter of the Hebrew legends yields to mythological analysis,’ and contain matter which is left out here precisely because it is to be had there. Through the obligingness of the publishers I am enabled to present the English reader with a translation of these Essays, whereby he is put in a position of no disadvantage as compared with the German. They will also serve the purpose of showing that the principles of Semitic Mythology were asserted in weighty words by a philosopher of high repute many years ago. But Dr. Goldziher has in the present work for the first time extended the application of the principles of Comparative Mythology to the entire domain of Hebrew Mythology, and laid down a broad foundation of theory, on which the elaboration of special points may be subsequently built up. Both these authors, it will be seen, regard a systematic working out of the results of Psychological science as the fundamental pillar of Mythological studies; and the reader will consequently find some psychological preparation not less necessary to the full understanding of the book than a knowledge of what has been written on Comparative Mythology.