Sentence Examples


  • Fernan Gomez followed in 1469, and opened trade with the Gold Coast; and in 1484 Diogo Cao discovered the mouth of the Congo.
  • Thus if we wish to ascertain the thermal effect of the action Mg+CaO =MgO+Ca, we may write, knowing the heats of formation of CaO and Mg0 to be 131000 and 146000 respectively, 0-131000 = 0-146000+x x =15000 cal.
  • A good quality of sheet-glass should show, on analysis, a composition approximating to the following: silica (SiO 2), 72%; lime (CaO), 13%; soda (Na 2 O), 14%; and iron and alumina (Fe 2 O 3, Al 2 O 3), 1%.
  • The following is a typical analysis of high quality bottle-glass: S102, 69.15%; Na 2 0, 13.00%; CaO, 15.00%; Al 2 0 3, 2.20%; and Fe 2 0 3, 0.65%.
  • The following is an analysis of a specimen of English pressed glass; S102, 70.68%; Na 2 0, 18.38%; CaO, 5.45%; BaO, 4.17%; Al 2 0 3, 0.33%; and Fe203, o.
 

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