Observation

Observation. Look-out. Taking an observation, an angle, etc. (astron. and survey).—Observation aérienne. Air observation.—Observation terrestre. Ground observation.—Observation latérale. Observation of fire from the flank.—Observation unilatérale. Observation of fire from one flank only.—Observation bilatérale. Artillery cro observation.—Poste d’observation. Observation post (generally; as a construction this is ‘ observatoire ’’).— Observation des coups. Observation of points of impact, experimental observation of fire—Prendre des observations. To take observations, (393/3069)w n4 [p.395]