The oldest mural paintings disclose a state of the arts of civilization so advanced as to surprise even those who have made archæology a study, and who consequently know how few new things there are under the sun. It is _not_ astonishing to find houses with doors and windows, with verandas, with barns for grain, vineyards, gardens, fruit-trees, etc. We might also expect, since man is a fighting animal, to see, as we do, pictures of marching troops, armed with spears and shields, bows, slings, daggers, axes, maces, and the boomerang; or to notice coats of mail, standards, war-chariots; or to find the assault of forts by means of scaling-ladders. But these ancient tombs also exhibit to us scenes of domestic life and manners which would seem to belong to the nineteenth century after our era, rather than to the fifteenth century before it. Thus we see monkeys trained to gather fruit from the trees in an orchard; houses furnished with a great variety of chairs, tables, ottomans, carpets, couches, as elegant and elaborate as any used now. There are comic and _genre_ pictures of parties, where the gentlemen and ladies are sometimes represented as being the worse for wine; of dances where ballet-girls in short dresses perform very modern-looking pirouettes; of exercises in wrestling, games of ball, games of chance like chess or checkers, of throwing knives at a mark, of the modern thimblerig, wooden dolls for children, curiously carved wooden boxes, dice, and toy-balls. There are men and women playing on harps, flutes, pipes, cymbals, trumpets, drums, guitars, and tambourines. Glass was, till recently, believed to be a modern invention, unknown to the ancients. But we find it commonly used as early as the age of Osertasen I., more than three thousand eight hundred years ago; and we have pictures of glass-blowing and of glass bottles as far back as the fourth dynasty. The best Venetian glass-workers are unable to rival some of the old Egyptian work; for the Egyptians could combine all colors in one cup, introduce gold between two surfaces of glass, and finish in glass details of feathers, etc., which it now requires a microscope to make out. It is evident, therefore, that they understood the use of the magnifying-glass. The Egyptians also imitated successfully the colors of precious stones, and could even make statues thirteen feet high, closely resembling an emerald. They also made mosaics in glass, of wonderfully brilliant colors. They could cut glass, at the most remote periods. Chinese bottles have also been found in previously unopened tombs of the eighteenth dynasty, indicating commercial intercourse reaching as far back as that epoch. They were able to spin and weave, and color cloth; and were acquainted with the use of mordants, the wonder in modern calico-printing. Pliny describes this process as used in Egypt, but evidently without understanding its nature. Writing-paper made of the papyrus is as old as the Pyramids.