A.The dynamometer employed for ascertaining the traction upon railways consists of two flat springs joined together at the ends by links, and the amount of separation of the springs at the centre indicates, by means of a suitable hand and dial, the force of traction.

And yet if you do ditch your engine a few times, don't conclude that you can never handle a traction.

You may be able to build one, and yet run a traction in the ditch the first jump.

What happens, then, is that every candidate with more than a quota, beginning with the top candidate, sheds a traction of each vote he has received, down the list, and the next one sheds his surplus fraction in the same way, and so on until candidates lower in the list, who are at first below the quota, fill up to it.