Bailly, Sir W. Jones, Higgins, and Ledwich, as well as many modern writers, agree in the conclusion that the Indians, the Egyptians, the Assyrians, and the Chinese were simply the depositaries, not the inventors, of science. The spirit of inquiry which in later times is directing attention to the almost buried past is revealing the fact that not merely the germs whence our present civilization has been developed descended to us from the dim ages of antiquity, but that a great number of the actual benefits which go to make up our present state of material progress have come to us from prehistoric times. The art of writing, of navigation (including the use of the compass), the working of metals, astronomy, the telescope, gunpowder, mathematics, democracy, building, weaving, dyeing, and many of the appliances of civilized life, have been appropriated by later ages with no acknowledgment of the source whence they were derived. When Pythagoras exhibited to the Greeks some beautiful specimens of ancient architecture which he had brought from Egypt and Babylon, they simply claimed them as their own, giving no credit to the people who originated them; and subsequent ages, copying their example, have refused to acknowledge that anything of value had been achieved prior to the first Greek Olympiad. When Philip of Macedon opened the gold mines of Thrace, a country in which it will be remembered the worship of the Great Mother Cybele was indigenous, he found that they had been previously worked "at great expense and with great ingenuity by a people well versed in mechanics, of whom no monuments whatever are extant." The decorations on the breasts of some of the oldest mummies show that the early Egyptians understood the art of making glass. It is now known that the lens as a magnifying instrument was in use among them. Attention has been drawn to the fact that the astronomical observations of the ancients would have been impossible without the aid of the telescope. Diodorus Siculus says there was an island west of the Celtae in which the Druids brought the sun and moon near them. An instrument has recently been found in the sands of the Nile, the construction of which shows plainly that 6000 years ago the Egyptians were acquainted with our modern ideas of the science of astronomy. William Huntington, who has travelled widely in India, Borneo, the Malay Peninsula, and Egypt, says: