Three pieces made of common pine, and which are thought to have belonged to the original ceiling of this mosque or to an early replica, are now in the National Museum at Madrid, but the carving of these fragments is so simple that in the opinion of Rodrigo Amador de los Ríos the decoration of the wood itself was purposely subordinated in this instance to the richness and variety of the painting. [Illustration: XXIV CHOIR-STALLS (_Santo Tomás, Avila_)] Three types of decorative doors were made in older Spain. In the earliest and simplest (_lacería en talla_), the _lacería_ or _lazo_-work is carved directly on and from the solid plank which forms the body of the door. In the second type, the carver's art is delicately blended with the joiner's--_lazo_-work with _ensamblaje_. In the third type the _lazo_-work is _sobrepuesta_--that is, attached to, not elaborated from, the planking.[42] [42] José Amador de los Ríos mentions, as a good example of the first of these types, a thirteenth-century door of the _claustrilla_ in the monastery of Las Huelgas at Burgos. Other doors in the same monastery are illustrative of the second type; while all three types are represented by the doors, described herewith, which close the principal entrance to the misnamed Hall of Ambassadors in the Alcázar of Seville. As in the case of ceilings, many and excellent examples of these doors exist to-day in Spain. Among the most remarkable are several in the Moorish palace of the Alhambra, such as the two (dating from the end of the fourteenth century or early in the fifteenth) belonging, respectively, to the famous Hall of the Abencerrajes (Pl. ix.), and to the Hall of the Two Sisters (Pl. x.). Apparently it was the former of these doors which Bertaut de Rouen wrote of in the seventeenth century as "une porte aussi grande et aussi épaisse comme celles de nos plus grandes églises. Elle s'ouvre des deux costez, et est toute de pieces rapportées, et d'un bois de differentes couleurs, comme les beaux cabinets et les belles tables qui coustent si cher."[43] [43] _Journal du Voyage en Espagne_, p. 85. An early Mudejar door proceeding from the church of San Pedro at Daroca in Aragon is now in the National Museum. This door, which is of larch, and measures nearly fourteen feet in height by nine in breadth, is of a simple design and represents a horse-shoe door described within the door itself. It was originally painted vermilion, with other decorative painting of a simple character in black, white, and red, and is fortified with massive iron braces. It is believed to date from earlier than the fourteenth century. [Illustration: XXV CARVED CHOIR-STALL (_Toledo Cathedral_)]