A chisel of copper was, however, discovered by Captain Dupaix[22] near the city of Antequera (in Oaxaca). We give a faithful fac-simile of it in cut 9. It is described by the discoverer in the following words: “There are also many chisels of red copper found in the neighborhood of this city, a specimen of which I possess, and will show in the illustrations. Its length is seven inches, and the thickness is one square inch (_sic_), and one side is edged, and this edge is a little dull, showing that it had been in use. We do not know the temper they gave to these instruments in order to employ them in their labors and in their arts, or to give the wood or possibly the stone a regular form.” We do not know if this chisel is still preserved in the Museum of Mexico, to which it was presented by Captain Dupaix. If not, we hope to be somewhat indemnified by another specimen of bronze chisel, of which we are now in pursuit, and which according to description is similar in form and composition to the one spoken of. Señor Andrez Aznar Perez, now in New York, ploughed up such a tool about twelve years ago, on his plantation near the river Tzompan in Tabasco, at the depth of nearly 12 inches. It was entirely solid, and had a slightly rounded edge, about an inch in length, and he offers to have it brought from Yucatan for further examination. From the illustration of Captain Dupaix and the description of Mr. Perez, we can for the moment only conclude that the ancient Mexican chisel was similar in its form to that which our stone-masons now make use of. In regard to the form of ancient Mexican axes, we gave a general idea at the beginning of this essay, but we have still several details to discuss. In the illustrations the curved wooden handle will no doubt appear remarkable. The Mexican painters were such faithful imitators of what they saw, that we cannot presume they would have indulged in what was an essential alteration of the object to be copied. If the handle of the axe was curved, they would have copied it curved, and thus it appears not only in the Mexican but also in the Yucatecan picture codices. Those acquainted with the practical handling of axes, and with felling trees, know that a curved handle must increase the swinging power of an axe to a considerable degree, and to have used this form is a remarkable instance of Mexican technical craft and cunning. It would be worth while to investigate whether this use of a curved handle was exclusively confined to the natives of Central America, or had passed beyond its boundaries, north as well as south. We further learn from the pictures, that not the blade of the axe, but the handle had an opening at a certain distance from the top, into which the blade was fitted.