The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 150
... containing less than 1/10 of 1 percent of impurities . Fire refining . Blister copper contains copper oxide and small quantities of other impurities . Some of these im- purities can best be removed by fire refining , which is done ...
... containing less than 1/10 of 1 percent of impurities . Fire refining . Blister copper contains copper oxide and small quantities of other impurities . Some of these im- purities can best be removed by fire refining , which is done ...
Page 209
... contains four major volcanoes , the highest of which is Miravalles ( 6,627 feet ) . The southern side of the Cordillera Central overlooks the Valle Central , often called the Meseta Central , the heartland of the country that includes ...
... contains four major volcanoes , the highest of which is Miravalles ( 6,627 feet ) . The southern side of the Cordillera Central overlooks the Valle Central , often called the Meseta Central , the heartland of the country that includes ...
Page 777
... contains . A hormone called enterocrinin , extracted from intesti- nal mucosa , when injected intravenously or subcutane- ously , causes a denervated jejunal loop to secrete intesti- nal juice . Secretions from the pancreas . The volume ...
... contains . A hormone called enterocrinin , extracted from intesti- nal mucosa , when injected intravenously or subcutane- ously , causes a denervated jejunal loop to secrete intesti- nal juice . Secretions from the pancreas . The volume ...
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