"You may well say so. I believe there are one or two organs nowadays that are said to be as fine; but for years and years this organ of St. Bavon was the grandest in the world." "Do you know how large it is?" asked Ben. "I noticed that the church itself was prodigiously high and that the organ filled the end of the great aisle almost from floor to roof." "That's true," said Lambert, "and how superb the pipes looked--just like grand columns of silver. They're only for show, you know; the _real_ pipes are behind them, some big enough for a man to crawl through, and some smaller than a baby's whistle. Well, sir, for size, the church is higher than Westminster Abbey, to begin with, and, as you say, the organ makes a tremendous show even then. Father told me last night that it is one hundred and eight feet high, fifty feet broad, and has over five thousand pipes; it has sixty-four _stops_, if you know what they are, _I_ don't, and three keyboards." "Good for you!" said Ben. "You have a fine memory. _My_ head is a perfect colander for figures; they slip through as fast as they're poured in. But other facts and historical events stay behind--that's some consolation." "There we differ," returned Van Mounen. "I'm great on names and figures, but history, take it altogether, seems to me to be the most hopeless kind of a jumble." Meantime Carl and Ludwig were having a discussion concerning some square wooden monuments they had observed in the interior of the church; Ludwig declared that each bore the name of the person buried beneath, and Carl insisted that they had no names, but only the heraldic arms of the deceased painted on a black ground, with the date of the death in gilt letters. "I ought to know," said Carl, "for I walked across to the east side, to look for the cannon-ball which mother told me was embedded there. It was fired into the church, in the year fifteen hundred and something, by those rascally Spaniards, while the services were going on. There it was in the wall, sure enough, and while I was walking back, I noticed the monuments--I tell you they haven't a sign of a name upon them." "Ask Peter," said Ludwig, only half convinced.