For some mysterious reason, the picturesque nurses, with their pearl-embroidered, diadem-shaped caps, like the _kokoshniki_ of the Empress and Court ladies, their silver-trimmed petticoats and jackets patterned after the ancient Russian "soul-warmers," and made of pink or blue cashmere, never have any children in their charge in winter. Indeed, if we were to go by the evidence offered by the Nevsky Prospekt, especially in cold weather, we should assert that there are no children in the city, and that the nurses are used as "sheep-dogs" by ladies long past the dangerous bloom of youth and beauty. The more fashionable people are driving, however, and that portion of the one hundred and fourteen feet of the Prospekt's width which is devoted to the roadway is, if possible, even more varied and entertaining in its kaleidoscopic features than the sidewalks. It is admirably kept at all seasons. With the exception of the cobblestone roadbed for the tramway in the centre, it is laid with hexagonal wooden blocks, well spiked together and tarred, resting upon tarred beams and planks, and forming a pavement which is both elastic and fairly resistant to the volcanic action of the frost. The snow is maintained at such a level that, while sledging is perfect, the closed carriages which are used for evening entertainments, calls, and shopping are never incommoded. Street sweepers, in red cotton blouses and clean white linen aprons, sweep on calmly in the icy chill. The police, with their _bashlyks_ wrapped round their heads in a manner peculiar to themselves, stand always in the middle of the street and regulate the traffic.