"I would rather not, as you say when you can't," he replied. "But I will come down a little nearer earth, if you prefer. Short of those visionary distances there are features of the prospect either way in which I differently rejoice. One thing is the shining black roofs of the cabs, moving and pausing like processions of huge turtles up and down the street; obeying the gesture of the mid-stream policemen where they stand at the successive crossings to stay them, and floating with the coming and going tides as he drops his inhibitory hand and speeds them in the continuous current. That is, of course, something you get in greater quantity, though not such intense quality, in a London 'block,' but there is something more fluent, more mercurially impatient, in a New York street jam, which our nerves more vividly partake. Don't ask me to explain! I would rather not!" he said, and we submitted. He went on to what seemed an unjustifiable remove from the point. "Nothing has struck me so much, after a half-year's absence, in this novel revelation of sublimity in New York, as the evident increase on the street crowds. The city seems to have grown a whole new population, and the means of traffic and transportation have been duplicated in response to the demand of the multiplying freights and feet." Our friend laughed in self-derision, as he went on. "I remember when we first began to have the electric trolleys--" "Trams, we believe you call them," we insinuated. "Not when I'm on this side," he retorted, and he resumed: "I used to be afraid to cross the avenues where they ran. At certain junctions I particularly took my life in my hand, and my 'courage in both hands.' Where Sixth Avenue flows into Fifty-ninth Street, and at Sixth Avenue and Thirty-fourth Street, and at Dead Man's Curve (he has long been resuscitated) on Fourteenth Street, I held my breath till I got over alive, and I blessed Heaven for my safe passage at Forty-second and Twenty-third streets, and at divers places on Third Avenue. Now I regard these interlacing iron currents with no more anxiety than I would so many purling brooks, with stepping-stones in them to keep my feet from the wet: they are like gentle eddies--soft, clear, slow tides--where one may pause in the midst at will, compared with the deadly expanses of Fifth Avenue, with their rush of all manner of vehicles over the smooth asphalt surface. There I stand long at the brink; I look for a policeman to guide and guard my steps; I crane my neck forward from my coign of vantage and count the cabs, the taxicabs, the carriages, the private automobiles, the motor-buses, the express-wagons, and calculate my chances. Then I shrink back. If it is a corner where there is no policeman to bank the tides up on either hand and lead me over, I wait for some bold, big team to make the transit of the avenue from the cross-street, and then in its lee I find my way to the other side. As