354 F. II. Bigelow — Further Study of the Soalr Corona. 



Table IT. 

 S. W. Quadrant. 



Ray. 



log ?•'. 



6'. 



P- 



A. 



B. 



c. 



Mean c. 



1 



0-12501 



38° 35' 



41° 29' 



3° 



0' 



176° 49' 



2° 51' 18" 





2 



0-08171 



34 9 



36 3 



6 







173 42 



1 58 4 





3 



0-11735 



37 51 



40 44 



8 







171 29 



2 56 34 





4 



0-09399 



34 36 



37 18 



12 







167 11 



2 45 20 





5 



0-11606 



40 10 



41 46 



15 







164 30 



1 12 16 i 





6 



0-09166 



41 6 



42 25 



31 







148 6 



1 8 56 





1 



0-17873 



50 45 



50 28 



42 







138 13 



-0 23 42 





8 



0-16308 



52 11 



52 27 



57 







122 41 



30 34 



1° 44' 58" 



S. E. Quadrant. 



0-08655 



37 



17 



35 



o 



1 



10 



178 47 



0-08100 



35 



6 



39 



57 



1 



20 165 8 



0-11272 



39 



13 



40 



40 



11 



168 48 



0-09148 



37 



24 



38 



11 



19 



160 39 



0-08849 



38 



10 



39 



o 



24 







155 32 



0-08014 



37 



59 



38 



50 



28 







151 25 



0-04482 



37 



21 



39 



13 



48 







129 15 



0-05173. 



41 



8 



42 



2 



50 







128 47 



1 37 56 

 

 51 38 

 49 34 

 54 26 



58 48 



2 51 32 



1 23 50 1 10 58 



Mean value of c for the south pole, 1° 27' 58". 

 N. E. Quadrant. 



Ray. 



log r'. 



d'. 



P- 



A. 



B. 



c. 



Mean c 



1 



0-21388 



39° 20' 



40° 55' 



1° 



0' 



178° 58' 



1°35' 0" 





2 



009159 



34 45 



36 4 



5 







174 50 



1 20 14 





3 



0-09717 



36 3 



37 27 



9 







170 42 



1 24 30 





4 



0-09678 



37 19 



38 23 



15 







164 38 



1 5 16 





5 



0-08194 



38 41 



38 36 



26 



1154 3 



— 5 28 





6 



0-05725 



38 46 



39 38 



41 



!l38 4 



1 8 58 





7 



0-12036 



49 48 



50 53 



66 



'111 53 



2 46 18 



1° 9' 21° 











N. W 



Quadrant. 









1 



0-09564 



35 



15 



37 33 



15 



164 



8 



2 24 2 





2 



0-05720 



29 



20 



29 11 



25 



155 



7 



— 6 38 





3 



0-12128 



40 



52 



43 10 



17 



162 



12 



2 24 30 





4 



0-10837 



38 



49 



42 32 



22 



156 



10 



4 2 34 





5 



0-07499 



37 



8 



39 5 



31 



147 



28 ' 



2 17 1 





6 



0-13909 



51 



9 



51 39 



60 



119 



18 



I 32 



2 20 



Mean value of c for the north pole, 1° 34' 51". 



If 6' is smaller than j?, c is positive, and the coronal pole is 

 on the earth side of the plane of the disk. 



This table is computed by taking the first point measured on 

 each ray, and selecting the values of r x X from Table II, and 

 a, d Q from Table III. As shown by the formula, r' 6' is the 

 computed point whose coordinates of projection were meas- 



