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it is due to routes that they become centres of accumulation at the points where they meet, or where two lines cross; it can, and where it can,

The true and only geographical problem is that of the utilization of possibilities. But it is so complex that it is evidently foolish to try and solve it by the aid of a very simple formula or some supposed geographical law. It is the great merit of the urban monographs, of which we spoke at the beginning, that they have proved this. One of the most typical and striking seems to us to be that which Blanchard has written on the town of Annecy in the Recueil des Travaux de l'I nstitut de geographie alpine de Grenoble.1