Annual Report of the Secretary of Internal Affairs of the Commonwealth of Pennsylvania: Industrial statistics, Part 3Department of Internal Affairs, Bureau of Industrial Statistics, 1908 |
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Page 27
... lime- stone of the Trenton formation and occurs most prominently in Northampton , Lehigh , Berks , Lebanon , Dauphin , Cumberland , Franklin , Lancaster , Centre and Blair counties . The rock generally dips northwest - ward , and has ...
... lime- stone of the Trenton formation and occurs most prominently in Northampton , Lehigh , Berks , Lebanon , Dauphin , Cumberland , Franklin , Lancaster , Centre and Blair counties . The rock generally dips northwest - ward , and has ...
Page 30
... lime combines with the silica and alumina and forms tri - calcium silicate and di - cal- cium aluminate . Silica is the active factor which causes the ce- ment to harden . Lime in the combined state has the property of giving cement its ...
... lime combines with the silica and alumina and forms tri - calcium silicate and di - cal- cium aluminate . Silica is the active factor which causes the ce- ment to harden . Lime in the combined state has the property of giving cement its ...
Page 39
... lime brick . ORIGIN OF CLAYS . To many the subject of the origin of clay is as a closed book . When rocks containing silica and alumina decay by the restless and constant action of the air , rain and frost , they crumble into earth or ...
... lime brick . ORIGIN OF CLAYS . To many the subject of the origin of clay is as a closed book . When rocks containing silica and alumina decay by the restless and constant action of the air , rain and frost , they crumble into earth or ...
Page 41
... lime , potash and soda . A very nearly pure kaolin was found in two localities in Indiana county ; one known as " Indianaite " ( Cox ) , made up as fol- lows : Silica , 45.90 per cent .; alumina , 40.39 per cent .; lime , trace ...
... lime , potash and soda . A very nearly pure kaolin was found in two localities in Indiana county ; one known as " Indianaite " ( Cox ) , made up as fol- lows : Silica , 45.90 per cent .; alumina , 40.39 per cent .; lime , trace ...
Page 42
... lime in destroy- ing the red color or iron . An excess of alumina in connection with lime and magnesia leads to a bleaching action of the iron , and a buff tint is the product . Clays contain two kinds of water ; the first known as ...
... lime in destroy- ing the red color or iron . An excess of alumina in connection with lime and magnesia leads to a bleaching action of the iron , and a buff tint is the product . Clays contain two kinds of water ; the first known as ...
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Common terms and phrases
55 hours 60 hours affected by strike Aggregate amount alumina amount of wages Average daily wage Average number Average rent paid Average value produced Average working hours Average yearly earnings BITUMINOUS COAL brick Capital invested realty car shortage cent clay companies reporting Companies working 60 counties Days idle days in operation Days lost Employes affected establishments considered Females Germans Highest rent hours per week idle on account industry inside workmen involved in dispute Irish Italians labor lime lost by strike Lowest rent machinery Males manufacture Market or realized Market value mills Minors Nationality not given Number of companies number of days Number of employes Number of establishments number of wage paid per annum Pennsylvania Portland cement pounds Production in given Question in dispute Question involved rent per annum report Idle Serious accidents silk Strike arbitrated Strike unsuccessful Total number Total production value of production wage earners employed workmen over 16