Union Square, for metropolitan splendor are entirely undeveloped; the best points are still occupied by comparatively worthless buildings, and the future will produce a now unlooked-for change in the whole character of that great district. The huddling together of our American cities is due to the recentness of the time when space was our greatest enemy and sparseness our chief discouragement. Our founders hated room as much as a backwoods farmer hates trees. The protecting walls, which narrowed the ways and cramped the houses of the Old-World cities, did not put a severer compress upon them, than the disgust of solitude and the craving for "the sweet security of streets" threw about our city-builders. In the Western towns now, they carefully give a city air to their villages by crowding the few stores and houses of which they are composed into the likeliest appearance of an absolute scarcity of space. They labor unconsciously to look crowded, and would sooner go into a cellar to eat their oysters than have them in the finest saloon above ground. And so, if a peninsula like Boston, or a miniature Mesopotamia like New York, or a basin like Cincinnati, could be found to tuck away a town in, in which there was a decent chance of covering over the nakedness of the land within a thousand years, they rejoiced to seize on it and warm their shivering imaginations in the idea of the possible snugness which their distant posterity might enjoy. Boston owes its only park worth naming--the celebrated Common--to the necessity of leaving a convenient cow-pasture for the babes and sucklings of that now mature community. Forty acres were certainly never more fortunately situated for their predestined service, nor more providentially rescued for the higher uses of man. May the memory of the weaning babes who pleaded for the spot where their "milky mothers" fed be ever sacred in our Athens, and may the cows of Boston be embalmed with the bulls of Egypt! A white heifer should be perpetually grazing, at her tether, in the shadow of the Great Elm. Would it be wholly unbecoming one born in full view of that lovely inclosure to suggest that the straightness of the lines in which the trees are planted on Boston Common, and the rapidly increasing thickness of their foliage, destroy in the summer season the effect of breadth and liberty, hide both the immediate and the distant landscape, stifle the breeze, and diminish the attractiveness of the spot? Fewer trees, scattered in clumps and paying little regard to paths, would vastly improve the effect. The colonnades of the malls furnish all the shade desirable in so small an inclosure.