"They had no knowledge of iron, but they made use of copper, and knew how to temper it so as to make it nearly as hard as steel. They used it for many of their implements, but they also had great skill in the use of implements of stone, flint, obsidian, and other minerals. They knew about lead and tin, but made little use of them, copper being their only metal for making into tools. Knives, scissors, and hatchets of copper were abundant. Bernal Diaz, who accompanied Cortez, mentions six hundred hatchets of copper that were paid to the conqueror as tribute by one tribe of natives. There are scissors in the Mexican museum which are said to contain tin, copper, lead, and platinum, and Humboldt says the Peruvian Indians made use of a similar alloy in making scissors and other implements."

HUITZILOPOCHTLI, THE GOD OF WAR.

Frank and Fred thanked the Doctor for the information they had received, and then turned to contemplate the statue of the god of war to whom the brave chief just mentioned was sacrificed.

"It is a hideous statue," said Fred, "about ten feet high, and appearing at first glance to be composed of heads and hands. It was found in the great square not far from the calendar-stone, and after close examination we found that it had a skirt of snakes. It was also called the God of Death, and this significance is shown by a skull which is sculptured near the centre.

"Skulls and snakes were favorite objects of adoration with the Mexicans, if we are to judge by the frequency with which we find them displayed. It is said that there was a wall around the principal temple of Tenochtitlan composed of colossal heads of snakes carved in stone; some of these have been found and are preserved in the museum. There is a coiled serpent there, covered with feathers instead of scales; it is carved in stone and is a very creditable piece of sculpture.

"They called our attention to a figure which is called the 'Indio Triste,' or Sad Indian. It seemed to us that the name was not justified, as the Indian was anything but sad. Mr. Brantz Mayer thinks this figure was set on a wall or battlement, and held a candlestick or the staff of a banner in its hand. It was found in the year 1828 in the street that is now called Calle del Indio Triste in commemoration of the discovery.

"Another interesting object was the shield of Montezuma, which has upon it the feather-work for which the people are famous, and also his cloak of the same material. It is evident that the feather-workers, wonderful as they are, have degenerated since the time of the Conquest. They used to make feather-cloth, and we have seen some curiosities in the shape of scarfs, serapes, and rebozos ornamented with feathers, and said to be very old. They make none of these things now, but confine themselves to pictures on cards, where the feathers are made to adhere by means of paste or wax. Each feather is handled separately, and none of the skin is ever applied to the card. You can give them a design and they will fill it up very quickly.

"Well, perhaps we have tired you out among the curiosities of ancient Mexico, and we will turn to more modern things. We could spend hours among the weapons which illustrate the warfare of the ancient Mexicans, and also the implements that reveal their domestic life and ways. Some of the Aztec picture-writings, which we have already mentioned, are to be seen in the museum, and after what we had heard of them we found them very interesting. One of the specimens preserved here is supposed to represent the migrations of the Aztec tribes.