Modern architects may not have altogether neglected these rules, but they have superadded enough empirical innovations to destroy the just proportions. It is Vitruvius who gave to posterity the rules of construction of the Grecian temples erected to the immortal Gods; and the ten books of Marcus Vitruvius Pollio on Architecture, of one, in short, _who was an Initiate_, can only be studied esoterically. The Druidical Circles, the Dolmens, the Temples of India, Egypt and Greece, the Towers, and the 127 towns in Europe which were found “Cyclopean in origin” by the French Institute, are all the work of initiated Priest‐Architects, the descendants of those first taught by the “Sons of God,” and justly called the “Builders.” This is what appreciative posterity says of these descendants: They used neither mortar nor cement, nor steel, nor iron to cut the stones with; and yet they were so artificially wrought that in many places the joints are hardly seen, though many of the stones, as in Peru, are 38 feet long, 18 feet broad, and 6 feet thick, and in the walls of the fortress of Cuzco there are stones of a still greater size.(331) Again: The well of Syene, made 5,400 years ago, when that spot was exactly under the tropic, which it has now ceased to be, was ... so constructed, that at noon, at the precise moment of the solar solstice, the entire disk of the sun was seen reflected on its surface—a work which the united skill of all the astronomers in Europe would not now be able to effect.(332) Although these matters were barely hinted at in _Isis Unveiled_, it will be well to remind the reader of what was said there(333) concerning a certain Sacred Island in Central Asia, and to refer him for further details to the Section, entitled “The Sons of God and the Sacred Island,” attached to Stanza IX of Volume II. A few more explanations, however, though thrown out in a fragmentary form, may help the student to obtain a glimpse into the present mystery.