As in the Frigidarium of the Cluny Museum in Paris, it seems as if one steps back into the world as Julius Cæsar knew it, across the threshold into the little vaulted chamber where the waters from the spring, once famed for miraculous cures, flow through the marble walls of the identical bath used by our Roman conquerors. The Romans contented themselves with a brick lining that still exists under the marble slabs, but the latter have an interest of their own, for they came from the famous bath built in the Earl of Essex’s house near by, which Queen Bess herself is said to have been the first to use. The spring comes from the old Holy Well, that gave its name to Holywell Street, on the North side of the Strand, a street destroyed to make room for Kingsway and Aldwych. There is a Roman bath of a different kind underneath the Coal Exchange in Lower Thames Street, but on your way to this from the Temple station (or bus 13 from the Strand), get out at Cannon Street, where in a sort of cage against the wall of St. Swithin’s Church, directly opposite the station, is the very oldest relic in the whole of the city of London,--London Stone, the stone that the Romans set up to mark the centre of the city; the starting point from whence they marked the miles along their branching highways. As long as history has been written in this land, there has been mention of London Stone. Do you remember how, in _Henry VI._, Shakespeare makes Jack Cade proclaim himself King of the City, striking his staff against the block? Once it was a big pillar and set on the other side of the way, but famous stones are seldom allowed to rest in peace, and time, the weather, and clumsy mediæval cart-wheels have chipped and worn it to its present size. [Illustration: LONDON STONE, CANNON STREET]