_Property of the American Museum of Natural History_
The Allosaurus (carnivorous dinosaur)
[LINK TO IMAGE]

This region is called the "Petrified Forest," or "Chalcedony Park." It is about one hundred square miles in extent, and is visited annually by thousands of people from all parts of the world. On account of its strange geological character it is of special interest to the scientist.

Let us make a brief trip to this wonderful stone forest. We take light hand-baggage and board a Santa Fé train. The railway passes near the most interesting part of the forest, and we change cars before entering Arizona in order to take this line. The railway officials have made a station at Adamana, six miles from the edge of the forest, in order to accommodate the travelling public. We leave the train here and procure a team to carry us to the forest.

Unless informed of what is to be seen one is apt to be greatly disappointed. One's idea of a forest is usually that of a timber-covered area in which the trees stand erect, with outspreading branches; but we look in vain for a standing tree, or even a stump that is erect.

All are branchless trunks, prostrate on the ground, many wholly or partly buried; moreover, they are lying in all sorts of positions, some entire and others broken into sections; some are massed closely together; others lie apart; and millions of pieces of all sizes are scattered around. At places we can travel a long distance by stepping from one log to another.

But what is that pile of variegated disk-like objects looking like the primitive Mexican ox-cart wheels? They are cross-sections of stone logs, some large and some small, seemingly thrown together carelessly. It is a characteristic of petrified trunks to break into cross-sections or blocks, varying from a few inches to several feet in length; and this tendency prevails here.

We are told that the trees of this forest antedate those of the Yellowstone Park by a long period of time. How the loftiest flights of the imagination are piqued as we contemplate the marvellous changes since this primeval forest depended on the soil and sun for their life-giving elements! As we wander through this wonderful forest our feet seem to be treading on the rarest gems. And well may it seem so, because when polished these pieces display a beauty of coloring and a lustre that rivals the glint of precious stones. There is no other petrified forest in the world in which the mineralized wood assumes so many varied and interesting forms and colors.

Many years ago a firm at Sioux Falls undertook to manufacture table tops, mantels, pedestals, and various decorative articles out of sections of this agatized wood by cutting them into the desired forms and polishing them. Tiffany and Company, the famous jewellers, also used this material for the base of the beautiful silver testimonial presented to the French sculptor, Bartholdi.

At a later date, an abrasive company of Denver conceived the plan of grinding up these trunks to make emery because of their extreme hardness; in fact, a plant was shipped to Adamana station for that purpose. Fortunately for the public, however, it was not put into operation because the company learned that a Canadian firm had put on the market an article at such a reduced price that to grind up these beautiful logs would be unprofitable.

Fragments, branches, and trunks of all sorts and sizes are found lying around, many of them richly colored, forming chalcedony, opal, and agate; some approach the condition of jasper and onyx.