National Geographic : 1913 Apr
lock-hole all out of one piece, thus making it much stronger than the average. Granite boulders in the floor of the principal house in this group had their tops carved into kitchen utensils for grinding corn and frozen potatoes (see page 469). In this group also we found the only case of houses lined with stucco or plaster made of red clay (page 463), and here is the only gabled building di vided into two parts by a party wall rising to the peak and pierced by three windows. SOME EXQUISITE STONEWORK Another group was distin guished by having its own pri vate gardens on terraces so ar ranged that access to them could be had only by passing through the small collection of houses constituting this particular clan group. In another case, the en trance to a group notable for its very elaborate and exquisitely finished stonework, the upright cylinder in the lock-hole is brought flush with the surface of the stone and is a part of the block itself (see pages 478 and 479). Another group is distinguished by having monolithic lintels for the doorways (see page 477). In The this group also the gables are on the unusually steep (see page 478). raised, Nearly all the groups had what tone, e lock. I seemed to be a religious center, devoted consisting of a more or less such a carved granite block in position. against In several cases caves had been excavated under these rocks, and in one case the cave was beautifully lined with finely cut stonework (483-485). In this last cave a semicircular tower was con structed on the top of a boulder (485 and 496) and connected with it by the finest example of masonry in Machu Picchu (485 and 496). This beautiful wall, shown on pages 487 and 488 and also on page 490, was made of specially selected blocks of beau tifully grained white granite, and was constructed by a master artist. We grew more fond of this wall the longer we Photo by Hiram Bingham THE MECHANISM O THE LOCK left-hand lock-hole, shown in the upper picture preceding page, after its stone covering had been showing the saucer-shaped depression in the cap nabling it to strengthen the stone cylinder of the t was not only an ingenious, but a patient and workman, who would take the trouble to make contrivance for securing himself and his family intruders. knew it, and every time we saw it it gave us a thrill of joy. The detailed study (p. 488) of where the wall joins the next house wall shows how ingeniously the blocks were con structed, so as to form a brace which would prevent the house and wall from leaning apart and thus causing cracks to appear in the wall. The precision of line, the symmetrical arrangement of the blocks, and the gradual gradation in the tiers, with the largest at the bottom and the smallest at the top, combine to pro duce a wonderfully beautiful effect.