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R.R. LAXTON, C.D. LITTON & R.E. HOWARD
Timber. Dendrochronology of Roof Timbers at Lincoln Cathedral
London, 2001, 84 pp. - 49,25 euro

bij bestelling voor 31 maart 2014: - 25 %

bestelnummer: EH000007


This volume of the English Heritage Research Transactions is a ground-breaking study of the dendrochronology, or tree-ring dating, of the roofs of Lincoln Cathedral.

The authors compiled data from sampling of over 500 oak timbers from nine different roofs on the Cathedral, and found three distinct periods of oak-felling: 1192--1280 (medieval construction), c1500--c1570 (post-medieval repairs) and c1660--c1750 (early-modern repairs). In each case the tree-ring dates, in conjunction with other evidence, were used to date the constructions and repairs to the roofs. The authors discuss the problems of loss of sapwood and, in the early-modern period, of seasoned timbers, which can make accuracy in dating difficult.

This volume contains details of all the dating undertaken over the last 20 years.The volume is a valuable case study on the use of dendrochronology in the analysis of a complex historic site, and an important contribution to the discipline. It also enables better future strategies of repair and maintenance to be devised.


Content / inhoud

PART 1: PRINCIPLES AND PRACTICE OF TREE-RING DATING
- The principles of tree-ring dating. A simple outline. Some complications
- The practice of tree-ring dating at the University of Nottingham Tree-Ring Dating Laboratory: Inspecting the building and sampling timbers. Measuring ring widths. Cross-matching and relative dating. Master chronological sequences. Estimating the felling date. Ring-width indices. Definition of ring-width index and t-values
- Background to the tree-ring analysis at Lincoln Cathedral: Tree-ring dating at Lincoln Cathedral. Organisation of the data. The tables

RESULTS AND DISCUSSION
- Tree-ring dating and analysis of the Lincoln timbers: cross-matching and dating. Sapwood and estimates of felling dates. Classification of timbers. Sources of roof timbers. Seasoning
- Dating the constructions of the Cathedral Roofs
- Dating the oak repairs and modifications to the Cathedral roofs
- Problems in interpretation of the tree-ring dates: On early timbers used in the construction of the cathedral roofs. Seasoning. Dates of purchases of oak for repairs; seasoning

BIBLIOGRAPHY


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