I am already far north of London, and as I walk in the streets of Petersburgh, I feel a coldnorthern breeze play upon my cheeks, which braces my nerves and fills me with delight. Do youunderstand this feeling? This breeze, which has travelled from the regions towards which I amadvancing, gives me a foretaste of those icy climes. Inspirited by this wind of promise, mydaydreams become more fervent and vivid. I try in vain to be persuaded that the pole...