1869.] 



Lieut. Elagin's Determinations of the Dip. 



281 



mentioned in the first column ; in the second column is noted the particular 

 needle used, and whether in the first series of observations the marked end 

 or "N. Pole" was dipping, in which case it has been indicated by the 

 word " direct in the case when the opposite or " S. Pole " was dipping 

 first, it is indicated by. the word " reversed." Under the head of marked 

 end, each of the two results is that formed from the mean of four sets of 

 observations ; in one of these two results the marked end is made a north 

 pole, and in the other it is a south pole. The headings of the remaining 

 columns explain themselves. 



Table t. 



Station and Date. 



Needle. 



Marked end. 



N. Pole. S. Pole 



Means of 

 the two 

 results. 



Means of 

 separate 

 Needles. 



1868. 

 Kew Observatory 

 (Magnetic House), 

 d h 



August 4 2 



5 05 



5 23-0 



7 2-0 



5 2-5 



6 00 



Royal Observatory, Green 

 wich (Magnetic Offices). 



August 7 23-5 



8 3-5 



9 23 



10 2-5 



10 3-5 



10 22-5 



11 So 



11 22 



12 22 



13 0-5 



13 2-5 



14 0-5 



14 22-5 



10 23-5 



11 23-5 



15 05 



Norwich (Mr. Firth's gar 

 den, St. Giles Street). 



August 18 20 



21 3-5 



24 20-5 



21 3-5 



24 20-5 



(Mr. Gibson's garden, 

 Bethel Street). 



August 24 23-0 



24 23 



A 1 direct. 



A Q direct. 



A x direct. 



Aj reversed, 

 A x direct. 



A x reversed. 

 A l direct. 

 A„ direct. 



A x direct. 

 A 2 direct. 



A, direct. 



67 59-50 



68 12-37 



OS 



68 



4-12| 68 

 9-40 68 



68 9-25 

 68 6 25 

 68 13-12 

 68 2-81 

 68 4-69 

 67 59-50 



67 58-19 



68 5-56 

 68 10-42 

 68 6-60 



5-60 



5- 11 



6- 59 

 3-50 



67 58-75 



68 2-12 



68 30-8 

 68 17-0 

 68 24-4 

 68 22-50 



7-80 



o 



68 



365 



50-12 



68 



1-25 



57-00 



68 



3-25 



0-00 



68 



2-06 



3-20 



68 



6-20 



58-20 



68 



4-20 



68 2-55 

 68 5-20 



51- 30 

 44-38 

 49-88 

 47-77 

 47-77 

 5206 



52- 22 

 49-12 

 55-25 

 55-10 

 44-70 



0-45 

 49-00 

 55-38 



0-12 

 57-19 



68 0' 



67 55 



68 1 

 67 55' 

 67 56' 

 67 55' 

 67 55' 



67 57' 



68 2 

 68 



67 55' 



68 2' 

 67 57 

 67 59 

 67 69 

 67 59 



67 58-: 



68 13-4 

 68 5-6 

 68 10-5 

 68 13-9 

 68 20-50 68 18-9 



23-19 68 9-37 

 23-12 68 15-50 



68 22-10 

 68 11-30 

 68 17-45 

 68 18-20 

 68 19-70 



68 16-28 

 68 19-31 



67 59-51 



68 16-93 

 68 18-95 



68 16-28 

 68 19-31 



