On the other hand, take the electric locomotive. Not only does he save weight by carrying no coal or water and so put that weight into motive machinery--his strength to-day is 7000 horse-power as against but about 3000 of our largest steam locomotives--but he actually goes 5000 miles without having to receive the inspection attention that his old-fashioned steam brother apparently has to have at the end of 150. Which means that for days at a time--and even a week or a fortnight, if the necessity arises--he can remain in steady service, going from one train to another, and only changing crews. The locomotive is always ready. And what is true in this comparison of the "front shop" light repairs and overhauling, which the steam locomotive must undergo at the end of each division, is still more true of that fortnight in the "back shop"--the heavier repairs and more thorough overhauling that it must have each twelvemonth, if it is to be kept in anything like a decent condition of efficiency. The steam locomotive must go to the "back shop" at the end of 75,000 miles. Barring accidents the electric locomotive need never go there. Its only ordinary repairs are the removing of worn bearings or the occasional rewinding of an armature, which can be easily accomplished in any small shop of a division-point. The elaborate plants of roundhouses, coal and water stations, turntables, cinder-pits, and sizable shops required every hundred or hundred and fifty miles along the lines of a steam railroad disappear, while with the facility of the electric locomotive for long-continued running the division-points themselves may well disappear. The New York Central railroad in its 440 miles between New York and Buffalo, using steam locomotives for 410 miles of this distance, for many years made three engine-changes upon the one-way run; recently it has done somewhat better than this. The Erie and the Lackawanna between these same cities make the same number of engine-changes. So do the Baltimore and Ohio and the Pennsylvania between New York and Pittsburg, only a slightly longer distance. This is standard steam railroad practice. It is only recently being changed. If these lines used electric locomotives the engines could easily make this entire stretch--with a possible change or two of engine-crews but not of locomotives--and at a vast saving of time, trouble, and money.