Last winter I resolved to complete this book, and while giving it the form in which it now goes forth into the world, I was constantly reminded of the dear friend to whom I intended to dedicate it. Now I am permitted to offer it only to the manes of Gustav Baur; for a few months ago death snatched him from us.
Every one who was allowed to be on terms of intimacy with this man feels his departure from earth as an unspeakably heavy loss, not only because his sunny, cheerful nature and brilliant intellect brightened the souls of his friends; not only because he poured generously from the overflowing cornucopia of his rich knowledge precious gifts to those with