1877.] The Rev. S. Haughton on Physical Geology. 57 



Hence we obtain, finally, 



X = -0-06 + 14-19 = + 14-13, 

 T=— 6-78+ 2-62= -4-16. 



Multiplying these results by 14*11, the coefficient of equation (11), we 

 find the following displacements in miles : — 



X (towards Yucatan) = 199*4 miles, 



T (towards Behring's Strait) =58*7 miles. 



Compounding these together we find 



VX 2 + Y 2 = 207*1 miles, 



Y =tau ^' 



$ = 73° 35' W. of Greenwich. 

 This resultant coincides with the meridian of the Andes. 



II. Afeica. 

 jNTorth Africa. 



X= -0*16 



Long. 



' cos 3 X — cos 3 X. 



X. 



Y. 



o 



345 



0*21 



-0*05 



-0*20 



350 



0*44 



-0*07 



-0*43 



355 



0*44 



-0*04 



-0*43 



360 



0*44 



0*00 



-0*44 



5 



0*44 



+ 0-04 



-0*43 



10 



0-32 



+ 0*05 



-0*31 



15 



0*35 



+ 0*09 



-0*34 



20 



0*35 



+ 0*12 



-0*33 



25 



0*35 



+ 0*15 



-0*32 



30 



0*35 



+ 0*17 



-0*30 



35 



0*17 



+ 0*10 



-0*14 



40 



0*05 



+ 0-03 



-0*04 



45 



0*01 



+ 0*01 



-0*01 





South Africa. 





10 



0*17 



-0*03 



+ 0*17 



15 



0-45 



-0*11 



+ 0*43 



20 



0*45 



-0*15 



+ 0*38 



25 



0*35 



-0*15 



+ 0*32 



30 



0*26 



-0*13 



+ 0*22 



35 



0*17 



-0*10 



+ 0*14 



40 



0*00 



0*00 



0*00 



45 



0*21 



-0*15 



+ 0*15 



X=+0*76 

 T=-3*72 



X=-0*82 Y= + l*81 



