352 



MISCELLANEOUS PAPERS. 



Fig. 2 gives the position when the earth has made a sixth of a revo- 

 lution and four hours have elapsed. The solar passage at this stage is 

 on the four-hour meridian. 



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Fig. 3. When the earth li;is innde ;i tJiird of <\ revolution and occupied 

 a period of eight hours, the solar passage occurs on the eight-hour me- 

 ridian. 



