MAG N E T I C SURVEY O F 1* E X N S V L V A MA. 



:}7 



-it 09.1 =—0° 02 .2 



Azimuth circle reads, 101 01.5 



Magnetic meridian reads, 100 59.3 



Abstract of Observations for Azimuth of Polaris. 



Mean of times 



Mean circle reading . 



Mean time of observation 



Corresponding sid. time 



R. A. of Polaris 



Hour angle . 



Azimuth of Polaris . 



Reading of Polaris . 

 " ast. meridian 



" magnetic meridian 



Magnetic declination W. 



«)" I 



283° 54' 21" 



8 h 5T 05". 7 



Is 22 29.5 



1 02 53.9 



17 19 3 



2° 02'. 



283 54.4 



281 51.8 



280 59.3 



52.5 



BllioottvUle.— Aug. U, 1841. Lat. 12° I8'.l; long. 7*° 42'. 



Abstract of Declination Observations. 



N. end. 



47.2 W. 



45.7 W 



1 ID. 2 W. 

 1 IS. 7 W. 



+ 1 02.7 



S . ii I 



55.2 W. 



57.2 W. 



46.7 W. 



16.1 W. 



_0 51.3 



+ 05.7 



Azimuth circle reads, 



= +0° 01'.4 

 2:;:; 39.9 



Magnetic meridian reads, 233 41.3 

 Abstract of Observations for Azimuth of Polaris. 



Mean of times 

 Mean circle reading . 

 Mean time of observation 

 Corresponding sid. time 

 R. A. of Polaris 

 Hour angle 



in 1 ' 36" 59 6 



19' 13" 



l b 2i"> 29". 



10 :. i 59 I 



1 02 56.2 



is 52 02 9 



