At any rate, having established this rough winding line, you next make the men number themselves as a line does when it is dressing, by odds and evens, or by ones and twos, so that the first, third, fifth, seventh man, etc., counting from one end make one lot, or all the ones make one lot, if you are going by ones and twos--and the second, fourth, sixth, eighth man, and so on, make another lot. You bid one of these sets--say the odds--to face towards one goal--say B--and the other set to face towards the other goal--A. Lastly, you bid them space themselves out so that any individual of one set can at least clearly see his fellow in the same set along the direction to which he faces, and the man of the other set in between. For instance, No. 39, looking south towards B, must be able to see No. 37, who is facing the same way as he is, and must at the same time be able to see No. 38, who is facing towards him; similarly, No. 38 must be able to see No. 40 clearly, and No. 39 in between. It is clear that in thick, “blind” country (as, for instance, in woods or in tumbled land) your men will have to stand fairly close together. But in open country they can be at considerable distances--up to half a mile or more; so long as every unit can see the next unit of the same set clearly, and have his signals received by the unit of the other set in between, the conditions are satisfied. Your line being thus instructed (and, as anyone may discover in practice, it is not a very long business once the first rough chain has been established), _the numbers of each set signal to the intervening numbers of the other set alternatively to move to right or left_ until a straight line is locally established. [Illustration: _Part II_, Sketch VII _Part II_, Sketch VIII] For instance, in sketch VII you begin with the “evens,” looking northward. No. 38, looking north towards No. 40, sees that No. 39 (who faces him, looking south) is somewhat too much to the east and does not stand properly between him and No. 40. He signals to No. 39 to move westward as along the dots until No. 39 is at a new position, shown by the dotted circle exactly between No. 38 and No. 40. Next, No. 36 signals to No. 37, who is too much to the west, until No. 37 is exactly between himself and No. 38. When this has been done all along the line by the evens the order is given to the odds to repeat the process from their new positions. No. 39, looking southward from his new position at the dotted circle, sees that No. 38 is too far to the east to be in perfect alignment with No. 39’s next odd neighbour No. 37, at whom he is looking, southward. No. 39 signals, therefore, to No. 38, who is looking northward, to move westward, and No. 38 does so until the signal stops him, when he is just in line between the new positions of No. 39 and No. 37.