"The author speculates cleverly and daringly on the scientific advance of the earth, and he revels in the physical luxuriance of Jupiter; but he also lets his imagination travel through spiritual realms, and evidently delights in mystic speculation quite as much as in scientific investigation. If he is a follower of Jules Verne, he has not forgotten also to study the philosophers." We are delighted to publish this classic book as part of our extensive Classic Library collection. Many of the books in our collection have been out of print for decades, and therefore have not been accessible to the general public. The aim of our publishing program is to facilitate rapid access to this vast reservoir of literature, and our view is that this is a significant literary work, which deserves to be brought back into print after many decades. The contents of the vast majority of titles in the Classic Library have been scanned from the original works. To ensure a high quality product, each title has been meticulously hand curated by our staff. Our philosophy has been guided by a desire to provide the reader with a book that is as close as possible to ownership of the original work. We hope that you will enjoy this wonderful classic work, and that for you it becomes an enriching experience.