:PHER MAGNETIC OBSERVATIOXS IX MISSOURI, 1S7S. lOI 



MAGNETIC INCLINATION OR DIP. 

 Needle No. 2. 



Marked End. 



St. Louis, Sta. «; 

 " b 



" " c 



Iowa City, lo. " 1 



" ' ' Univ. 



St. Charles 



Wright City... 



Columbia 



Louisiana 



Hannibal 



Canton 



Keokuk, Iowa . 



Memphis 



Kirksville 



Macon 



Kansas City. ■ • 



Sedalia 



Vinita, I. T. .. 



69 05. 8 

 69 10 -6 

 69 0S.3 



71 51-7 



72 12.4 

 69 II. 5 



68 57-3 



69 01.8 

 69 25.8 



69 51.9 



70 10.4 

 70 26.2 

 70 27.4 

 70 13-9 

 70 03.5 

 68 51.9 

 68 41.4 

 66 18.3 



69 35 

 69.24 

 69 27 

 72 13 

 72 27 

 69 48 

 69 30 

 69 22 



69 56 



70 08 

 70 32 

 70 48 

 70 32. 8 

 70 49.9 

 70 1 1. 2 

 69 15.4 

 68 52.3 

 66 54.2 



Mean by Polarities. 



Result'g Date. 

 Dip. I 1878. 



69 20. 

 69 17- 



69 17- 

 72 02. 

 72 19. 

 69 29. 



69 13- 

 69 12. 



69 41. 



70 00. 

 70 21, 

 70 37' 

 70 30. 

 70 30. 

 70 07. 

 69 03. 



!68 46 

 66 36 



4 Mar 27 



7 "" 28 

 9 " 30 



8 June 16 

 7 July 2 



o Aug. 

 9 " 

 3 " 

 6 Sept 



9' " 



2 " 



MAGNETIC INCLINATION OR DIP. 



Needle No. 3. 



Wright City 



Mexico 



Columbia. .. 

 Louisiana . . 

 Hannibal • • ■ 



Canton 



Keokuk 



Memphis . . . 

 Kirksville . . 

 Macon . .. .. 

 Kansas City 



Sedalia 



Vinita, I. T. 



69 42.5 

 69 38-0 



69 50-3 



70 24.5 

 70 40.7 



70 52-9 



71 04.9 

 70 44-9 

 70 58-5 

 70 25.7 

 69 46 . I 

 69 28. 8 

 66 63.9 



Mean by Polarities. 



Series I. Series II 



68 58.6 



69 17.2 

 69 02.0 



69 34-2 



70 16.4 

 70 16.2 



70 47-5 

 70 02.3 



70 42-3 

 69 50-2 

 69 02.1 

 68 36.2 

 66 21.8 



69 14. 

 69 30- 



69 29. 



70 02. 

 70 33' 



70 38. 



71 04, 

 70 24. 

 70 53 

 69 56 

 69 22 

 69 04 

 66 39 



69 26.9 



69 24-5 

 69 22.8 



69 56.6 



70 24.0 

 70 30.8 

 70 48.0 

 70 23.2 

 70 47-3 

 69 19. I 

 69 25.2 

 69 00.3 

 66 46.7 



