The mapped area comprises the whole of north sumatra, which morphologically forms a characteristic unit and belongs to the province of atjeh and dependencies and in part to sumatra's eastcoast.
Map P1.XVI, to a scale of 1 : 12500, has been surveyed with the boussole tranche nontagne, as to the main ecasurements, while the interosediary measurements have bean done with measuring-chain and had-compass.
As a result of the favourable outcome, obtained during a goverment survey of the coalfields in residency Palembang in the year 1915, at which time the discovery of high-calorie coal raised hopes that combustible had been found here, equal to the best European coal,
Pemanfaatan batubara baik sebagai sumber energi primer maupun sebagai bahan baku untuk industri perlu mendapat perhatian yang sungguh-sungguh dari Pemerintah, mengingat perkembangan situasi energi dunia akhir-akhir ini. Kebijaksanaan pemerintah untuk sebanyak mungkin mendapatkan devisa dari ekspor minyak dan pemberian prioritas untuk pemanfaatan gas…
the survey started in june, 1917, and was suspended on the 15th of february, 1918, due to illness, on account of which the survey of the concession "Boenian" could not entirely be completed
In order to be able to included the project of a steelworks in the second Five-year Plan (beginning in 1959), Biro perantjang Negara (hereinafter called BPN), after having made an invitation for offers in spring 1955, decided in March 1956 to entrust Westdeutsches Ingenieur-Buro Dr.Rohland KG., Dusseldorf (hereinafter called WEDEXRO) with the task …
pemanfaatan batubara baik sebagai sumber energi primer maupun sebagai bahan baku untuk industri perlu mendapat perhatian yang sunguh-sunguh dari pemerintah.
In the framework of the work entrusted to WEDEXRO in 1958 "the suitability of the sigihan coal for metallurgical purposes was to be determined" and at the same time "it appeared advisable to carry out a critical examination of the state of the sigihan mine".