Calibration and maintenance of surveying instruments : testing of theodolites (technical paper for information)

Abstract

At its first session the Economic Commission for Africa considered that there was a great need in Africa for certain types of scientific surveys such as hydrological, geological, geodetic and other surveys of resources including resources for industrialization and of energy such as solar energy (report E/320l). According to this report,the view was expressed that as part of this work the secretariat might compile a bibliography of surveys already carried out and draw attention to major gaps.