The illustration, Fig. 20, shows the ground plan of a second-story room of Mashongnavi. This room measures 13 by 12½ feet, and is considerably below the average size of the rooms in these villages. A projecting buttress or pier in the middle of the east wall divides that end of the room into two portions. One side is provided with facilities for storage in the construction of a bench or ledge, used as a shelf, 3 feet high from the floor; and a small inclosed triangular bin, built directly on the floor, by fixing a thin slab of stone into the masonry. The whole construction has been treated with the usual coating of mud, which has afterwards been whitewashed, with the exception of a 10-inch band that encircles the whole room at the floor line, occupying the position of a baseboard. The other side of the dividing pier forms a recess, that is wholly given up to a series of metates or mealing stones; an indispensable feature of every pueblo household. It is quite common to find a series of metates, as in the present instance, filling the entire available width of a recess or bay, and leaving only so much of its depth behind the stones as will afford floor space for the kneeling women who grind the corn. In larger open apartments undivided by buttress or pier, the metates are usually built in or near one corner. They are always so arranged that those who operate them face the middle of the room. The floor is simply a smoothly plastered dressing of clay of the same character as the usual external roof covering. It is, in fact, simply the roof of the room below smoothed and finished with special care. Such apartments, even in upper stories, are sometimes carefully paved over the entire surface with large flat slabs of stone. It is often difficult to procure rectangular slabs of sufficient size for this purpose, but the irregularities of outline of the large flat stones are very skillfully interfitted, furnishing, when finished, a smoothly paved floor easily swept and kept clean. On the right of the doorway as one enters this house are the fireplace and chimney, built in the corner of the room. In this case the chimney hood is of semicircular form, as indicated on the plan. The entire chimney is illustrated in Fig. 62, which represents the typical curved form of hood. In the corner of the left as one enters are two ollas, or water jars, which are always kept filled. On the floor near the water jars is indicated a jug or canteen, a form of vessel used for bringing in water from the springs and wells at the foot of the mesa. At Zuñi water seems to be all brought directly in the ollas, or water jars, in which it is kept, this canteen form not being in use for the purpose. The entrance doorway to this house, as indicated on the plan, is set back or stepped on one side, a type of opening which is quite common in Tusayan. This form is illustrated in Fig. 84.