manual for commanders of infantry platoons. - US Army Combined ...

nraIuYAl FOR (COXMRANDERS OF IINFANT]RY PLATOONTS. 131
Depot of cartridges, grenades, and bombs (trench weapns).s!
Dep'o~t of Imaterials and tools.
~Depot of food.
'Watering p~lace.
Dressing s tgtion.
Bomb-proof shelter N~o.7, for 12 muen.
Light shelter No. 4, for 20 mien.
Observing station.
M~3achine-brun emnplacement;, occupied.
M~acime-gun emlalcemlent, prepazred.
Casemalcted shelt~er for maLchine gu~n, ccup~ied..
Casematedl shelter for maschine gun, preparedl.
Trenchi artiller~y and appliances, emp~lacemntslt occupiedl (bythree'
58 mm11., two:037 mm1., andc one l~neuma~tic).
Salmc, prepar~ed (for two 240 mm11.).
The c~orrespondlingr worksx as show\n ab~ove, b~ut under~ cou,31ru.-,
tion.
Emp~lacement for· a2utoma1tic rif'le.
Ri-fle grenadee battery (of 4 V. B. r·itle grrenlades).
Battery (two 120 mm-. and four '75 mm1~.).
Edge of a wood.
D3rain for thle disposal of water.
Lim3its olf districts or subdistricts.
Ni~oTE.-D-P elnol1ition1S are showin in y;ellowv crayon.
Designation of objects on checkered maps.-Guide plans: and
mlaps of scale 1/50,000 which ar~e in observation stations and
commlland posts (C. P.) are dlividled into kiilomneter squarc3~, thle
lines being drawn -froml a single point of origin for the entire
territory. By abscissa is mneant distances mleasuredf along~ the
axzis N, to the right or lef~t (see fig. 144), and or-dinate isJ the
term npplied to distances measured alonb the axis Y, aboye or
below the origin of coordinates.
To describe a point on the· map2 by mleans of these kilomneter
sqluares it is n1ecessaryd to proceed as follows: F~irst dlesionate
the square by the coordinates of its S. WY. angle in the
ordler-nzbscissa, ordinate :
33 28
then definitely locate the object; (or point) by adding to each of
the kilomzetric coordinates the hectometric coordinates, a~lways