not before, and later borrowed by the Romans, and after the Greek conquest, by the Egyptians, was Babylonian in origin and a common utensil in Mesopotamia prior to the fourteenth century B.C. The composite symbols of Babylonia were adopted by the people of Western Asia. The eagle of the southern city-kingdom of Lagash (Telloh) was transported to the Hittites. The eagle symbol, wherever found, double-headed or single, is a bird from the land of Paradise. The winged horse is found upon Hittite seals, and from Asia passed over the Hellespont and became the Greek Pegasos. The native fetish deities of Asia Minor were replaced by gods in human form, and the idea of a trinity, or triad of deities, followed in the wake of Babylonian culture. In architecture the Babylonians invented the arch. This achievement had always been attributed to the Etruscans on the basis of the statements of the classical writers. But it was used by the Babylonians, as we now know, three thousand years before there is any evidence of its use on classical soil. Columnar construction dates back to the same period. Both the arch and the column were found in the buildings unearthed a few years ago at Nippur by the expeditions from the University of Pennsylvania. Owing to the dearth of wood and stone these pioneers in the arts of civilization were forced to have recourse to clay, the only material available. They therefore invented the pillar made of brick. Babylonia was the land _par excellence_ of brick buildings. Their land abounded in asphaltum and this they used instead of mortar, as the Hebrew writer tells us they did when they built the tower of Babel, "the temple with the lofty tower," in Babylon. "Their technical skill rested on scientific principles no less unattainable in modern architecture than the Grecian idea of beauty in the plastic art. The buildings which they constructed with brick must have been built according to rules and laws unknown to modern architecture, which views many of these ancient works with the same astonishment as is evoked by the pyramids of Egypt." Babylonia can at least claim to have made early advances in astronomical observations. The movements of the heavenly bodies were carefully watched from the earliest times and records made of them. Even in the late Roman period the Chaldeans were still looked upon as the founders of astronomy. It is true that Egypt had also at a very early age successfully cultivated this science and had introduced a practical calendar which began the year on the day when Sirius was first observed on the eastern horizon at sunrise 4200 years before the Christian era. Some Egyptologists hold that this calendar was the precursor of the Julian, which in turn was modified by Pope Gregory in 1582, thus giving us the Gregorian calendar which was adopted in England by the Calendar Amendment Act of 1751. But it is more probable that we are indebted to the Babylonians for our calendrical system, Greece and