The Encyclopedia Americana, Volume 7Grolier, 1985 - Encyclopedias and dictionaries |
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Page 92
... ment is accurate to a few seconds per day . Smaller portable clocks , whose timekeeping element is a balance and spring , require escape- ments of a different type , since in these clocks the balance may have quite a large arc of swing ...
... ment is accurate to a few seconds per day . Smaller portable clocks , whose timekeeping element is a balance and spring , require escape- ments of a different type , since in these clocks the balance may have quite a large arc of swing ...
Page 379
... ment of the U.S. government , created to promote the country's international trade , economic growth , and technological advancement . With the growth of U.S. industry in the late 19th century , many business leaders came to feel that ...
... ment of the U.S. government , created to promote the country's international trade , economic growth , and technological advancement . With the growth of U.S. industry in the late 19th century , many business leaders came to feel that ...
Page 382
... ment , a three - dimensional model is prepared by a model maker . After necessary modifications are approved , a ... ments . In other instances photographs are bought from photograph agencies and other sup- pliers , such as a specific ...
... ment , a three - dimensional model is prepared by a model maker . After necessary modifications are approved , a ... ments . In other instances photographs are bought from photograph agencies and other sup- pliers , such as a specific ...
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19th century Africa American Atlantic cod became Bogotá born Britain British church civil Clark Clay Cleisthenes Cleveland climate clocks cloture cloud clubs coal coal tar coeducation coelacanth coffee coinage coins coke College Colombia colonies color Colorado Columbia Columbus comets comic commercial common cold common law Commonwealth COMMONWEALTH OF NATIONS Communist countries courts developed died early East economic elected Empire England English established European example federal France French higher education important India Indian industry institutions Island John known land later latitudes London major ment meters miles montmorillonite Mountains Museum National North Ocean organization party period plants political Population president produced programs region River Roman social South Soviet Soviet Union species temperature tion trade treaty Union United University usually West western World World War II York