ERRATA. 
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In the fourth column of the table, fw “ 18 h. 19 m. 25 s.” read “ 18 h. 19 m. 2'5 s.” 
17th line, foi' “ taken to the position,” read “ taken to be the position. ” ♦ 
27th line, insert “ h ” after “ trace of.” 
Lines 1 and 2,/or “inches” and “inch” read “seconds of arc.” 
Last line, for “ Hy ” read “ Hr ” ; and after “ Hp ” read on to next page without stop. 
In the column “Remarks,” opposite A 4177'75, for “Straight” read “Strongest.” 
HABEISON AND SONS, PEINTEES IN OEDINAET TO HIS MAJESTY, ST. MAETIW’S LANE, LONDON, W.C. 
