All at once just before me a great hammer raised its head, and then fell with a sounding clang upon the rim of a big bell; the half hour had struck. All about us the air resounded and vibrated with the mighty waves of sound. From the bells above finally came the hum of faint harmonics, and then followed silence like the stillness that ensues after a heavy clap of thunder. Cerberus now beckoned me to accompany him amongst the bells, and showed me the machinery that sets this great marvel of sound in motion. He showed me the huge "tambour-carillon," with barrels all bestudded with little brass pegs which pull the wires connected with the great hammers, which in their turn strike the forty-six bells, that unrivaled chime known throughout Flanders as the master work of the Van den Gheyns of Louvain, who were, as already told, the greatest bell founders of the age. The great hour bell weighing, as already noted, nearly a ton, required the united strength of eight men to ring him. Cerberus pointed out to me the narrow plank runway between the huge dusty beams, whereon these eight men stood to their task. The carillon tunes, he told me, were altered every year or so, and to do this required the entire changing of the small brass pegs in the cylinders, a most formidable task, I thought. He explained that the cutting of each hole costs sixty _centimes_ (twelve cents) and that there were about 30,000 holes, so that the change must be quite expensive, but I did not figure it out for myself. The musical range of this carillon chime of Malines may be judged by the fact that it was possible to play, following on the hour, a selection from "Don Pasquale," and on the half and quarter hours a few bars from the "Pre aux Clercs." Every seven and a half minutes sounded a few jangling sweet notes, and thus the air over the old town of Malines and the small hamlets surrounding it both day and night was musical with the bells of the carillon. On fete days a certain famous bell ringer was engaged by the authorities to play the bells from the _clavecin_. This is a sort of keyboard with pedals played by hand and foot, fashioned like a rude piano. The work is very hard, one would think, but I have heard some remarkable results from it. In former times the office of "carilloneur" was a most important position, and, as in the case of the Van den Gheyn family of Louvain, it was hereditary. The music played by these men, those "morceaux fugues," once the pride and pleasure of the Netherlands, is now the wonder and despair of the modern bell ringer, however skillful he may be. [Illustration: The Beguinage: Dixmude]