The fourth-class coaches are built like the third-class, with cross divisions making several compartments, but the division walls do not extend to the roof so the passengers can toss things to one another over them. Separate cars are provided for men and women, many scandals having resulted from the promiscuous herding of both sexes which prevailed some twenty years ago. The occupants of the men's cars are of all ages, from tiny lads who seem to be hardly more than eight or nine--but are no doubt older, as the Belgian laws no longer permit minors of that age to work--to grandsires of eighty. All are roughly clad, ready to take up their respective tasks the moment they arrive--no one thinks of having a separate suit for travelling as most of the workmen who commute to and from an American city would do. In the women's car the occupants are mostly young girls from fifteen to twenty, with a sprinkling of little girls and some women up to thirty, but very few who appear to be older than that. They always seem to be happy, singing and "carrying-on" with the utmost abandon. They are ready to start a flirtation at a moment's notice and occasionally, when their car halts in a station next to some other train in which there are young men near the windows, the whole bevy of charmers devotes itself to making conquests--opening the windows and shouting a volley of good-natured raillery to which, if they are natives and used to it, the youngsters retort in kind. Then, as the trains start, the laughing crowd throws kisses by handfuls and the flirtation is over. As our train jolted along, with frequent stops to take on and let off fourth-class passengers, the Professor explained to me that to be consistent to his plan we really should have visited Tournai first. However, it was far out of the way as a starting point, and its history did not dominate that of all Flanders in the way that the early history of Bruges did. In fact, while in early times subject to the Counts of Flanders, it was often subject to the French Crown for generations at a time, and is usually regarded as a Walloon rather than a Flemish city. Its influence on Flemish art and architecture, however, led us to include this Ville d'Art in our itinerary.