Propagation of error formulas for K/Ar dating method

In this paper has been derived the most relevant propagation of error formula in the case when argon peaks are measured. The most frequently cited formula published by Cox and Dalrymple deals with the isotope ratios, instead of isotope peaks heights, considered as independent variables.     

Ireland in the imperial imagination: British nationalism and the Anglo-Irish Treaty

ABSTRACT

The signing of the Anglo-Irish Treaty on 6 December 1921 was a watershed moment in modern Irish history. In addition to copper-fastening the partition of the island, the agreement catalysed the bifurcation of revolutionary Sinn Féin and set in train the processes that culminated, ultimately, in the outbreak of a bitter Civil War the following June. The events that led to the Treaty and the debates on it in Dáil Éireann have received extensive treatment from historians. However, scholars have paid far less attention to the impact of the Treaty on British politics; in particular, they have neglected to explore how the concession of limited Irish self-government impacted Britain’s national self-image at a time of crucial imperial adjustment following the Great War. This article will examine the range of arguments proffered for and against the Treaty in the House of Commons and the House of Lords and suggest that Parliamentary opposition to the settlement was underpinned by a sense of imperial-national feeling, one guided by an attitude of conscious superiority to non-British elements that can be understood productively as a form of British nationalism.