WAR-BRIDGE AT MONMOUTH 281 THE RABOT AT GHENT: A FORTIFIED LOCK 289 TODENTANZBRUCKE AT LUCERNE IN SWITZERLAND 292 PONT SAINT-ESPRIT 293 CANAL BRIDGE IN VENICE 329 RAIN 363 A BOOK OF BRIDGES [Illustration: BRIDGE OF BOATS AT COLOGNE] CHAPTER THE FIRST ON THE STUDY OF BRIDGES AND ROADS I GENERAL VIEWS A pontist, or devotee of bridges, ought to be envied and pitied; his work is marvellously attractive, but he cannot hope to learn even a twentieth part of the discoverable history which has circulated along highways. Indeed, the history goes back to a time that preceded the descent of man; a primal time when every bridge was made by Nature, and when footpaths and tracks were the runs and spoor of wild animals, many of which were huge enough to plough their way through deep jungles and to trample wide paths through the undergrowth of virgin forests. There were eight or nine sorts of natural bridge (p. 113), and they were all useful to the many quadrupeds that travelled far in their search for prey and forage. To meditate on this fact is to visualise many probable happenings; vivid pictures live before the mind’s eye, and in one I see how a full-grown Iguanodon, after gorging all day in a ravaged weald, was overcome by the sleep of glutted hunger as he tried to cross a big fallen tree that bridged a chasm near by his lair under a rock-shelter; and a flock of little bright birds came and settled on the seventy feet of body and tail, just to pick up vermin. Why not? Life everywhere has fed on lives; something has died, and suffered a resurrection of vitality, whenever appeased hunger has renewed the health of an organism; and this picture of an edacious Iguanodon and his bird friends attracts me for two reasons: it reminds me that bridges throughout their history have circulated strife, and it represents the perpetual law of battle that rules creatively over all living creatures, like foul manure over gardens and harvest fields.