The Encyclopedia Americana, Volume 7Grolier, 1994 - Encyclopedias and dictionaries |
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Page 105
... produced in large quantities . The sweatshop system in the early 20th cen- tury spawned a myriad of small factories , primar- ily in London but also in Manchester and Leeds . After more than half a century of decline , efforts were made ...
... produced in large quantities . The sweatshop system in the early 20th cen- tury spawned a myriad of small factories , primar- ily in London but also in Manchester and Leeds . After more than half a century of decline , efforts were made ...
Page 115
... produced by reflection , while refraction in the ends of vertical crystals R. JENSEN produces the circumzenithal arc , which is often more brightly colored than the rainbow . Hori- zontally floating crystals produce various non ...
... produced by reflection , while refraction in the ends of vertical crystals R. JENSEN produces the circumzenithal arc , which is often more brightly colored than the rainbow . Hori- zontally floating crystals produce various non ...
Page 463
... produced by the pyrolysis of an organic fiber . As it passes through the furnace , the fiber is heated to about 2300 ° C ( 4170 ° F ) in the absence of oxygen . Volatile substances are driven off as gases , and the residual carbon is ...
... produced by the pyrolysis of an organic fiber . As it passes through the furnace , the fiber is heated to about 2300 ° C ( 4170 ° F ) in the absence of oxygen . Volatile substances are driven off as gases , and the residual carbon is ...
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