(ii) =Instruction in the Finger-Breadth Method.=--Results obtained by this method are necessarily inaccurate, because the hands and fingers vary in size and in distance from the eye with each individual. It is, however, a useful guide for measuring approximate distances. After the first few lessons in the use of this method, measurements should first be judged, and then the fingers should be used to check them. It will be found that when men have been thoroughly trained in this method they will seldom have to use their fingers for measurements at all except in very doubtful cases. [Illustration: =Fig. 49.=--DESCRIPTION OF TARGETS--FINGER-BREADTH METHOD. (“Section Fire” Landscape Target, Panel No. 2.)] [Illustration: =Fig. 50.=--DESCRIPTION OF TARGETS--CLOCK-FACE METHOD. (“Section Fire” Landscape Target, Panel No. 1.)] =8. Clock-Face Method= (Fig. 50).--This method may be used to indicate the position of the target described in relation to a description-point. In employing it, the clock-face must be imagined as hanging vertically, with its centre directly over the description-point. Thus, an objective vertically above the description-point would be described as being at twelve o’clock, while objectives to the right and left on the same horizontal plane as the description-point would be respectively at three and nine o’clock, and an objective directly below the description-point would be at six o’clock. _The direction, right or left, should always be given, as well as the hour, to avoid possible mistakes._ =9. Examples of Description of Targets=--(i) =Description-Points=.--Fig. 49 shows a field of fire with plenty of detail, and serves to illustrate the method of indicating targets by the use of description-points alone, and by the use of these points in combination with the finger-breadth method. If the landscape in this figure is taken as representing a sector, the following features might be as description-points: (_a_) Right edge of wood on hill; (_b_) tallest poplar half right; (_c_) white house on left. The fire-unit commander would inform his unit that they would be named and referred to respectively as _Wood_, _Poplar_, _House_, in using them to direct fire. (ii) =Indication by Description-Points.=--Examples of indicating targets by these description-points alone are as follows: (_a_) _At 1,000--at centre of hedge running from left of poplar.--Ten rounds. Rapid fire._ (_b_) _At 1,400--brown field to right of house--at right half of hedge running along top.--Fire._ (iii) =Indication by Description-Points and Finger-Breadths.=--Examples of indicating targets by description-points combined with the finger-breadth method are as follows: (_a_) _At 800--at foot of big tree two fingers left of poplar.--Five rounds. Fire._ (_b_) _At 900--at fold of ground one finger below house.--Five Rounds. Rapid fire._ For the purpose of illustration the finger-breadths are shown drawn on the landscape.