Speculum mundi [electronic resource] : or, an exact account of the great and formidable eclipse of the sun, which will be visible, total, and central, in England, May 11, 1724. Shewing, The true Time of the Beginning, Middle, and End of it; with its Quantity and Duration, as it will appear at London. Also, The Names of those Cities and Towns in England where it will be total, and on what Side of the Sun's Body the Light will be seen, an how much, where it is not total. With The various Events and Contingencies which are likely to succeed it in the several Parts of the World therein concern'd.