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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Building services are often overlooked in the history of architecture and engineering. This volume presents 41 papers presented at the Fifth Annual Conference of the Construction History Society held at Queens' College Cambridge from 6-8 April 2018 which cover a wide variety of topics on aspects of construction history and building services.

A complex enclosure identified by aerial photography at Dunragit Galloway, was demonstrated by excavation to have been of Late Neolithic date, and comprised three concentric timber ramped post-rings, 120–300 m in diameter. The two outer post-rings each comprised large uprights interspersed with smaller members, probably forming a continuous palisade. Each was a single-phase structure and the posts had rotted out. The inner ring had largely been made up of large, freestanding posts, most of which had rotted away, but some of which had been deliberately removed, the post-holes being considerably larger than those of the two outer rings. Where posts had been pulled out, a number of elaborate deposits had been placed in the crater left by the post-removal. The entrances to the post-rings are not aligned and the preferred interpretation is that the monument as a whole had two phases of construction, in each of which a timber circle was surrounded by a palisade, and in which the middle post-ring succeeded the outer, or vice-versa. The enclosure had been preceded by a post-defined cursus monument in which all the post had been burned in situ and numerous other post-holes were located on the same axis as the cursus, extending beyond the monument itself. The most elaborate entrance, connected with the middle post-ring, is composed of two parallel lines of features, presumably post-holes, opening toward the south, and aligned on a large earthen mound at Droughduil, 400 m away. Droughduil Mote, though recorded as a medieval motte, recalls the association of various very large mounds with with henges or palisaded enclosures, as at Silbury Hill, Wiltshire. Excavation demonstrated that it had been constructed with stepped sides, and that a stone cairn had been constructed on its summit. A series of optically stimulated luminescence dates on the accumulated sand over the surface of the mound demonstrated that it was certainly not medieval, and was probably Neolithic in date.