II. Abstract of the results of the comparisons of the standards of length of England, France, Belgium, Prussia, Russia, India, Australia, made at the Ordnance Survey Office, Southampton

Abstract

In the preface to this paper, Sir Henry James gives an account of the circumstances under which the work was undertaken, as follows. (A Table of results is appended, p. 313.) The principal triangulation of the United Kingdom was finished in 1851; and the triangulations of France, Belgium, Prussia, and Russia were so far advanced in 1860, that, if connected, we should have a continuous triangulation from the Island of Valentia on the south-west extremity of Ireland, in north latitude 51º 55' 20", and longitude 10º 20' 40'' west of Greenwich, to Orsk on the River Ural in Russia.