Political changes are responsible for many variations in flags, and the wear and tear of Time soon renders many of the devices obsolete. On turning, for instance, to Nories' "Maritime Flags of all Nations," a little book published in 1848, many of the flags are at once seen to be now out of date. The particular year was one of exceptional political agitation, and the author evidently felt that his work was almost old-fashioned even on its issue. "The accompanying illustrations," he says, "having been completed prior to the recent revolutionary movements on the Continent of Europe, it has been deemed expedient to issue the plate in its present state, rather than adopt the various tri-coloured flags, which cannot be regarded as permanently established in the present unsettled state of political affairs." The Russian American Company's flag, Fig. 59, that of the States of the Church, of the Kingdom of Sardinia, the Turkish Imperial Standard, Fig. 64, and many others {27} that he gives, are all now superseded. For Venice he gives two flags, that for war and that for the merchant service. In each case the flag is scarlet, having a broad band of blue, which we may take to typify the sea, near its lower edge. From this rises in gold the winged lion of St. Mark, having in the war ensign a sword in his right paw, and in the peaceful colours of commerce a cross. Of thirty-five "flags of all nations," given as a supplement to the _Illustrated London News_ in 1858, we note that eleven are now obsolete: the East India Company, for instance, being now extinct, the Ionian Islands ceded to Greece, Tuscany and Naples absorbed into Italy, and so forth.