of the frailest material. These wonderful artisans, in making ceilings that are apparently faultless, use only cheese-cloth. After stretching it as tightly as possible, and adding a coat of heavy sizing, the beautiful and gorgeous frescoes are laid on, and the eye of an expert cannot detect the difference between a cloth ceiling and the more substantial plaster with which we are familiar in the United States.
The floor of this room presented another subject of inquiry as to its materials and the method employed in making it so hard, smooth, and red. Mortar, much the same as is used for plastering, but of a consistency which hardens rapidly, is the basis of operations. On this a coating of fine gravel, very little coarser than sand, is applied. Then comes the final red polish which completes a floor of unusual coolness and comfort, and admirably adapted to the country. The material used to give the red finish is tipichil, an Indian word, in some places known as almagra, an abundant earthy deposit to be found principally in the arroyos. For ages this substance has been an important article for ornamentation, even the wild tribes of Indians using it to paint their faces and bodies. When the floor is hardened, a force of men is employed, who, by rubbing it with stones, produce a beautiful glazed polish. If time were of any value, these floors would cost fabulous sums, as it takes weeks to complete one of them. It required months almost for me to comprehend the manner of cleaning them.
