Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3776Chemical news office., 1932 |
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Strona 125
... material , known as Plaster of Paris , or wall plaster , and the anhydr- ous calcium sulphate , known anhydrite . Gypsum is marketed in various forms , and an increasing propor- tion of the calcined material each year enters into the ...
... material , known as Plaster of Paris , or wall plaster , and the anhydr- ous calcium sulphate , known anhydrite . Gypsum is marketed in various forms , and an increasing propor- tion of the calcined material each year enters into the ...
Strona 126
... material and a leaflet can be obtained free of charge from the Ministry of Agriculture , 10 , Whitehail Place , London , S.W. 1 . METAL MINING IN ONTARIO . According to figures recently issued by the provincial Department of Mines ...
... material and a leaflet can be obtained free of charge from the Ministry of Agriculture , 10 , Whitehail Place , London , S.W. 1 . METAL MINING IN ONTARIO . According to figures recently issued by the provincial Department of Mines ...
Strona 127
... material from a large number of papers covering a very wide field of work ; hence the book is rather encyclopædic and should prove of use , although the material has not been surveyed at all critically . The authors ' recognise the need ...
... material from a large number of papers covering a very wide field of work ; hence the book is rather encyclopædic and should prove of use , although the material has not been surveyed at all critically . The authors ' recognise the need ...
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