Such railways as these, costing no more than our own, we would hold up for imitation. How, then, do they differ from ours? or rather, what must be done to put ours into the same condition of economical efficiency? In the first place, stone culverts and earth embankments should replace wooden structures, wherever possible. As fast as wooden bridges decay, they should be replaced with iron; and if the piers and abutments require it, as is too often the case, they should be rebuilt in a substantial manner. The tubular iron bridge we do not recommend, on account of its excessive cost. For short spans of sixty feet and under, two riveted boiler-plate girders under the track make a cheap and permanent bridge, and can be manufactured in any part of the country. For large spans there are several excellent forms of iron trusses, Bollman's, Fink's, or, still better, the wrought-iron lattice. Cuttings should be widened, if not already wide enough, so as to admit of good ditches along the track. The slopes should be dressed off and turfed. This costs little, and prevents the earth from washing down and choking up the ditches, and much of that terrible nuisance, dust. The secret of all good road-making, whether railways or common roads, lies in thorough drainage. Until our railways are well drained, it is of little use to try to improve the condition of the track. "In an economical view," says Mr. Colburn, "the damage occasioned by water is far greater than the utmost cost of its removal. The track is disturbed, the iron bruised, the fastenings strained, the chairs broken, the ties rotted, the resistance and thereby the consumption of fuel increased, and the whole wear and tear greatly enhanced." Next to drainage in importance is plenty of good ballast. The New-England roads are well ballasted, as a general thing; but in the West, where gravel is scarce, they do not trouble themselves to find a substitute. Even the great New York and Erie road, after ten years' use, is only half ballasted, which accounts for its being more than half worn out. Much has been said and written on the necessity of a good joint for the rails, and many are the inventions for securing this object,--"compound rails," "fished joints," "bracket chairs," "sleeve joints," etc., etc. But without better road-beds no form of superstructure will last, and with road-beds as good as they ought to be almost any simple and easily adjusted arrangement will answer well enough.