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In a 'good' growing season the trees within a large climatically homogeneous region all respond by putting on a wide growth ring within the cambium which separates the sapwood from the bark.
If research into other sources of information also fails to throw light on the building's history, resort may be made to the various scientific methods of dating.The incorporation of ancient bog oak into a building, no matter how intricately carved or jointed, would immediately become obvious to the chronologist, as would timber renovations.Dendrochronology is the oldest method, having been introduced over a century ago by an American astronomer, Professor A E Douglass.In research into our heritage the conservationist or architect may be able to date the general period of a building he is working with from either the situation, materials of construction, type of timber joints or other stylistic features.Almost certainly the century or portion of a century when it was built may be assigned with some certainty.With leading edge innovation and flexible advertising solutions, we will help advertisers effectively communicate with all consumers across our network.
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In more typical growing seasons a ring of intermediate width is produced.
(It should be noted that there is no direct linear relationship between ring width and, say, sunshine, or other weather components) Thus a 'good' or 'poor' growing season is defined with reference to the amount of growth produced.
This article outlines three of the most important methods currently used for dating buildings or, in a complex situation, the order of construction within the building.
These are: dendrochronology (or 'tree-ring' dating), radiocarbon dating and thermoluminescence dating.
He established a laboratory in the university of Arizona, at Tucson, to study tree-rings.