Author: William Roscoe Livermore

Publisher: Theclassics.Us

Published: 2013-09

Total Pages: 34

ISBN-13: 9781230414164

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1879 edition. Excerpt: ...that denoting the effective strength is in advance of 1.0 referring to the Table of Multipliers on the left, when necessary to ascertain this point. Remove the first peg. 104. Multiply by the time of firing. Ascertain from the number and position of the arrows how many minutes the fire has lasted, and advance the count by putting the first peg as many points ahead of the second as required to multiply by the number of minutes. 105. To modify the result, move the pegs, according to the indications of the line in Table III., headed "Number of Points," back as many holes as shown by the numbers on the left, and forward as shown by those on the right of the column in the centre, which corresponds to the reading of the scale. Consider first the formation and position of the troops fired upon; these give the most important factors. The former is shown by the blocks, and the latter by the topography indicated on the plan. It is always assumed that troops lie down whenever they are not in motion and can deliver their fire to advantage from that position. The fortification blocks will show whether the troops are protected by abattis, earth-works, etc., and if a minute mark shows that the works are still in progress Table X. B. (c) must be consulted; so also if a shelter trench is fired upon from a distance of 1,000 yards or more. If cavalry or artillery are fired upon, the number of points by which the result is modified will be found from Table III. 106. If at this stage of the calculation it appears that the losses are slight, it is better to leave the arrows upon the plan and postpone the computation for a while. In an unimportant skirmish this estimate will suffice unless there be some very obvious reason for...