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Photo by A. W. Cutler 



THE GREAT CLOCK AT GREENWICH OBSERVATORY, LONDON 



Here the maps of the world begin, for Greenwich is the international prime meridian. 

 Every place on every map throughout the world is now indicated as east or west of this 

 observatory. "The long development of the spiritual life of the nation, made possible by the 

 early attainment of territorial and racial unity, has perhaps something to do with the blos- 

 soming forth of inventive genius to a greater extent, if we consider the whole of English 

 history, than in any other country. It is perhaps enough in this place to adduce the example 

 of the industrial Revolution of the eighteenth century, upon whose stupendous achievements 

 the development of science, industry, and agriculture in the nineteenth century entirely 

 depended" (see text, page 411). 



407 



