In the midst of this great and terrible struggle Holland is transformed:  Holland is the land of transformations.  A geographical map of that country as it existed eight centuries ago is not recognizable.  Transforming the sea, men also are transformed.  The sea, at some points, drives back the land; it takes portions from the continent, leaves them and takes them again; joins islands to the mainland with ropes of sand, as in the case of Zealand; breaks off bits from the mainland and makes new islands, as in Wieringen; retires from certain coasts and makes land cities out of what were cities of the sea, as Leuvarde; converts vast tracts of plain into archipelagoes of a hundred islets, as Biisbosch; separates a city from the land, as Dordrecht; forms new gulfs two leagues broad, like the gulf of Dollart; divides two provinces with a new sea, like North Holland and Friesland.  The effect of the inundations is to cause the level of the sea to rise in some places and to sink in others; sterile lands are fertilized by the slime of the rivers, fertile lands are changed into deserts of sand.  With the transformations of the waters alternate the transformations of labor.  Islands are united to continents, like the island of Ameland; entire provinces are reduced to islands, as North Holland will be by the new canal of Amsterdam, which is to separate it from South Holland; lakes as large as provinces disappear altogether, like the lake of Beemster; by the extraction of peat, land is converted into lakes, and these lakes are again transformed into meadows.  And thus the country changes its aspect according to the violence of nature or the needs of men.  And while one goes over it with the latest map in hand, one may be sure that the map will be useless in a few years, because even now there are new gulfs in process of formation, tracts of land just ready to be detached from the mainland, and great canals being cut that will carry life to uninhabited districts.

But Holland has done more than defend herself against the waters; she has made herself mistress of them, and has used them for her own defense.  Should a foreign army invade her territory, she has but to open her dikes and unchain the sea and the rivers, as she did against the Romans, against the Spaniards, against the army of Louis XIV., and defend the land cities with her fleet.  Water was the source of her poverty, she has made it the source of wealth.  Over the whole country extends an immense network of canals, which serves both for the irrigation of the land and as a means of communication.  The cities, by means of canals, communicate with the sea; canals run from town to town, and from them to villages, which are themselves bound together by these watery ways, and are connected even to the houses scattered over the country; smaller canals surround the fields and orchards, pastures and kitchen-gardens, serving at once as boundary wall, hedge, and road-way; every house is a little port.  Ships, boats, rafts, move