Chemical News and Journal of Physical Science, Tom 121Chemical news office., 1921 |
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Strona 19
... minerals in the form of emery and corundum . Aluminous abrasives are also manufactured by electric fur- nace methods ... mineral , bauxite , containing as high a percentage of alu- minum oxide as it is possible to obtain . The ore is ...
... minerals in the form of emery and corundum . Aluminous abrasives are also manufactured by electric fur- nace methods ... mineral , bauxite , containing as high a percentage of alu- minum oxide as it is possible to obtain . The ore is ...
Strona 22
... mineral in the list of uranium minerals in which helium has been identified . The test was conducted as follows : - About 5 grms . of brannerite was powdered and mixed with previously fused sodium bisulphate in a hard glass tube which ...
... mineral in the list of uranium minerals in which helium has been identified . The test was conducted as follows : - About 5 grms . of brannerite was powdered and mixed with previously fused sodium bisulphate in a hard glass tube which ...
Strona 50
... mineral was first described by him in 1791 , and the name was bestowed upon it in honour of the discoverer . The dolomite mineral and rock are important from both a theoretical and practical standpoint . Much work has been done upon ...
... mineral was first described by him in 1791 , and the name was bestowed upon it in honour of the discoverer . The dolomite mineral and rock are important from both a theoretical and practical standpoint . Much work has been done upon ...
Strona 52
... mineral varies in composition in rather wide limits . Cornell College , Mount Vernon , Iowa , June 18 , 1920 . PRODUCTION OF ATTAR OF ROSES IN BULGARIA . By GRAHAM H. KEMPER . DURING the 12 years prior to the first Balkan War , that is ...
... mineral varies in composition in rather wide limits . Cornell College , Mount Vernon , Iowa , June 18 , 1920 . PRODUCTION OF ATTAR OF ROSES IN BULGARIA . By GRAHAM H. KEMPER . DURING the 12 years prior to the first Balkan War , that is ...
Strona 57
... minerals , visiting mines , museums , art galleries and points of interest and in the evening when I was totally exhausted and ready to fall asleep , he would open some treatise on history of art , or civilisation or soci- ology and ...
... minerals , visiting mines , museums , art galleries and points of interest and in the evening when I was totally exhausted and ready to fall asleep , he would open some treatise on history of art , or civilisation or soci- ology and ...
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