The avenues on the eastern and western extremities of the city are the abodes of poverty and want, and often of vice, hemming in the wealthy and cleanly sections on both sides. Poverty and riches are close neighbors in New York. Only a stone's throw back of the most sumptuous parts of Broadway and Fifth avenue, want and suffering, vice and crime, hold their courts. Fine ladies can look down from their high casements upon the squalid dens of their unfortunate sisters. Broadway is the principal thoroughfare. It extends from the Battery to Spuyten Duyvel Creek, a distance of fifteen miles. It is built up compactly for about five miles, is paved and graded for about seven miles, and is lighted with gas along its entire length. There are over 420 miles of streets in the patrol districts, and eleven miles of piers along the water. The sewerage is generally good, but defective in some places. Nearly 400 miles of water-mains have been laid. The streets are lighted by about 19,000 gas lamps, besides lamps set out by private parties. They are paved with the Belgian and wooden pavements, cobble stones being almost a thing of the past. For so large a city, New York is remarkably clean, except in those portions lying close to the river, or given up to paupers. The city is substantially built. Frame houses are rare. Many of the old quarters are built of brick, but this material is now used to a limited extent only. Broadway and the principal business streets are lined with buildings of iron, marble, granite, brown, Portland, and Ohio stone, palatial in their appearance; and the sections devoted to the residences of the better classes are built up mainly with brown, Portland, and Ohio stone, and in some instances with marble. Thus the city presents an appearance of grandeur and solidity most pleasing to the eye. The public buildings will compare favorably with any in the world, and there is no city on the globe that can boast so many palatial warehouses and stores. Broadway is one of the best built thoroughfares in the world. The stores which line it are generally from five to six stories high above ground, with two cellars below the pavement, and vaults extending to near the middle of the street. The adjacent streets in many instances rival Broadway in their splendors. The stores of the city are famous for their elegance and convenience, and for the magnificence and variety of the goods displayed in them. The streets occupied by private residences are broad, clean and well-paved, and are lined with miles of dwellings inferior to none in the world in convenience and substantial elegance. The amount of wealth and taste concentrated in the dwellings of the better classes of the citizens of New York is very great. [Picture: BROADWAY, LOOKING UP FROM EXCHANGE PLACE]