October, 1912. 



KNOWLF.DGE. 



The sums of the quantities from the above five tables ;ire 

 to be taken rejecting in the sum any integral niunbcr of 

 thousands. Then apply to each of the sums I, II, III, IV, ni 

 the correction given in Table B, the argument being the sum 

 of n just found ; afterwards apply to the corrected sums 

 I, II, III, IV the second correction given in Table C, the 

 argument being the corrected suru of in. Thi- .■second 

 correction is 



+ when in is less th.in 500. 

 — „ „ ,, gre.iter ,, ,, 



Table B. 



Finally, the apparent distance of the satellites east or west 

 of the planet's centre is found by the diagram, the unit of 

 distance being the planet's equatorial radius. The sums 

 I, II, III, IV, are in units of one-thousandth of the circum- 

 ference. They may be reduced to degrees by multiplying 

 by 0-36. 



