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Supplement May 25th 1861
Taking the 3 PM observations marked "A" for [[underlined]] Variation [[/underlined]]
[[strikethrough]] that it will [[/strikethrough]]
they are marked as follows:
Altitudes  75°-10'           61°
           74°-03            60
           74°-10            59.5   P.D. 68°=56'-52"
         --------           ------
       3) 224 -03         3)180.5    Lat 62 -52 -00 sec ,34098 
       2)  74 -41           ------
         --------            60,17 0 Alt 37 -35 -12 sec ,10104
           37 -20-30                     ----------
               15-56                  2)169 -24 -04
         -----------                    -----------
           37 -36-26                     84 -42 -02 cos 8,96553
                1-14                     68 -56 -52
         -----------                     ----------
           37 -35-12                     15 -45 -10 cos 9,98337
                                                        ------- 
                                                     2)19,39092
                                                       --------
                                                 cosine 9,69546
                       [[612?]]-16
                                 2
                          --------
                            120-32
                             60-10
                          --------
                Variation N. 60-22 W. This is an increase of error by the Compass not reversing as it should - & also by the Large daily variation - The variation is really N62W  

Transcription Notes:
This transcription is a facsimile that matches the calculations as they appear on the page.