All traditions respecting the “Kaballah” of the Egyptians concur in stating that it was a Perfect System of Proportion, and if rediscovered would furnish us with a Complete Key to all the Works of Art in antiquity, and of Nature itself; that it would elucidate the Origin of Language, written or spoken, hieroglyphic or figurative, thus showing the hidden and true meaning of the Old and New Testaments. The Grecian Canon was this system of proportion brought from Egypt by Grecian sculptors and architects, about B. C. 350, by which they fashioned their unequalled statues of the human figure, and their architectural masterpieces. Mr. Felt claims to have discovered the Kaballah, and that the proof of its correctness is abundant and _positive_. The Kaballah is a geometrical figure, the actual measurements of which are established through all Nature and Art. This work is written without technical terms, and plainly, so that a child of twelve years may understand it. The geometrical problems are reduced to the simplest elements, so that they can be understood without a knowledge of geometry. The work has been examined and approved, and enthusiastically endorsed by prominent members of the learned professions and mechanic arts, and is peculiarly interesting to students of Masonry, being a complete key to the Ancient Mysteries. The distinguished sculptor, J. Q. A. Ward, Vice-President of the National Academy of Design, writes as follows:— “There seems not the least doubt that Mr. Felt has discovered the Canon of Proportions of the Greeks, and the Kaballah of the Egyptians, and, as far as we can judge, he establishes the subject-matter of the first tables of stone, in establishing a law of proportion that exists in all the works of nature and their ramifications or parts. “His geometrical problems are new and startling, and are confirmed by nature and art. Altogether it is a work of vital interest to every person, and on a subject that cannot help being appreciated by the general reader.” To this testimony we add the following extract of a letter from Mr. William Page, the distinguished artist, President of the National Academy of Design:— “I am greatly interested in the above-mentioned question of the Kaballah as presented by Mr. Felt, and concur in this agreement with his belief, that is, so far as I have been able in two investigations to understand, and believe that it will prove of the greatest results, and interest the intelligent to a very remarkable extent when once published to the world.” This work will be profusely illustrated in the highest style of the art, and will be invaluable to Students of Mathematics or Language, Clergymen, and all persons wishing to understand the true meaning of the Bible, Architects, Machinists, Engineers, Builders, Sculptors, etc.