Towers and church steeples, which form such important and picturesque features in architectural (and, one might add, landscape) design, owed their existence, in the first place, to the necessities of watch, guard, and defence, and probably also means of communication by signals.

To the mediæval city, which, as it is now being realized, was a highly organized arrangement for mutual aid and defence, towers were of great importance both for watch and defence. They served as strong buttresses and vantage posts placed at intervals along the inclosing city wall, and flanking the gateways. The boldness and grace of design in some mediæval towers is very notable. Those of Siena, for instance, and that town of towers, San Gimignano, of which I give a rough sketch to show the effect from a distance of the clustering towers, like a crown upon the hill top; above all, perhaps, is the famous tower of the Signoria or Palazzo Vecchio, the old city hall of Florence (thirteenth century). The Belfry of Bruges (thirteenth century), too, is another fine instance of boldness and grace of design. It had formerly a spire, which is shown in a sixteenth century picture, the background of a portrait by Pourbus, a Flemish painter, but the spire was twice destroyed by fire, and was not renewed a third time. But even as it stands the belfry is very striking, and, while it commands a vast prospect of the country round, it is also conspicuous all over the town, and a landmark to the flat country round about.

The towers of our own ancient village churches are generally battlemented, and the square ones often have a corner turret to give a more commanding view; and this again gives variety, and is a very picturesque feature. The battlements themselves (though intended for use in defence) are extremely ornamental features, and give relief and lightness to the parapet. In later Gothic times they were frequently fancifully pieced and filled with ornament, as on Magdalen Tower at Oxford. Their decorative value was perceived by the wood carver of the Gothic times, and they are constantly introduced in tabernacle work, screens, and furniture, where their use is purely decorative.

TOWER OF PALAZZO VECCHIO, FLORENCE.

Chimneys, again, afford an instance of a purely useful and serviceable object lending itself to ornamental treatment and becoming important as parts of the design of a building.

The first chimney in England is said to be the one existing in the Norman house at Christchurch, Hampshire. The common practice was to have the fireplace in the centre of the hall and let the smoke escape by a louvre in the roof, as may still be seen in the hall at Penshurst Place in Kent (fourteenth century); but in later times, especially in the Tudor period, the chimneys of brick are often found full of invention and variety in design, and extremely rich in effect. I give sketches of some characteristic examples at Framlingham Castle and Leigh's Priory.

TOWER WITH CORNER TURRET, AXMOUTH CHURCH, DEVON.

The fine old brick chimney stacks one finds among the old farmsteads of Essex it is supposed were built first and then the half-timbered house built around the brick stack.