:-;r. 



Land Magnetic Observations, 1914-20 



AFRICA. 



Cameroun Concluded. 



Station 



Olama 



LorniS 



Kribi 



Ebolowa 



Efulen 



Teisan 



Campo (Eclipse) 



Latitude 



3 25.5 N 



3 09.5 N 



2 56.4 N 



2 54.4 N 

 2 47.4 N 



2 41.0 N 

 2 20.8 N 



Long. 

 East 

 of Gr. 



11 16 



13 41 



9 55 

 11 09 

 10 32 



14 03 

 9 50 



Date 



Jun 

 Dec 

 Jan 

 Dec 

 Dec 

 Jun 

 Jun 

 Jun 

 Jun 

 Jun 

 Dec 8, 

 May 24. 

 May 25, 

 May 26, 

 May 28. 

 May 29. 

 May 30, 

 May 31, 

 Jun 1, 

 Jun 2, 



23, 

 31, 



1. 

 11, 

 12, 



9. 

 19, 

 13, 

 14, 

 15, 



Declination 



Local Mean Time Value 



h 

 8.7 

 10.2 

 5 



h 

 10.3 



.11.6 

 to 18. 



2(dv) 



8.5 

 9.4 

 8.6 

 15.5 

 6.0 



9.9 

 ,11.1 

 ,10.3 

 ,17.0 

 to 18. 



12.8 



18.0 



18.1 



15.2 



10.4 



10.2 



10.1 



7.5 



5.9 



6.2 



,14.3 

 to 

 (dv) 

 ,17.0 

 to 17. 

 to 17. 

 to 17. 

 , 9.2 

 to 

 (dv) 



(dv) 



4 (dv) 

 4(dv) 

 4 (dv) 



10 16.8 W 

 10 11.0 W 

 10 10.7 W 



10 21.0 W 



11 02.1 W 

 10 16.4 W 

 10 48.8 W 

 10 47.2 W 



10 03 8 W 



11 07.1 W 

 11 07.0 W 

 11 06.8 W 

 11 08.8 W 

 11 08.7 W 

 11 04.4 W 



11 07.1 W 



Inclination 



L. M. T. Value 



/, h 

 14.6 . .. 

 16.8 ... 



16.8 



15.7 

 14.3 



15.5 

 16.6 



13.7 ... 



13 58.8 S 



14 01.8 S 



15 20.5 S 



14 37.4 S 



15 00.7 S 



14 37.6 S 



15 50.1 S 



15 34.2 S 



15 36.1 S 



Hor. Intensity 



L. M. T. Value 



h h 



9.1,10.0 



10.6,11.3 



8.9. 9.6 

 9.8.10.7 

 9.0, 9.9 

 15.9.16.7 



13.2,14.0 



15.6,16.6 



8.0. 8.8 



c. g. s. 

 . 30585 

 . 30600 



. 30930 

 . 30523 

 . 30760 

 . 30868 



.30776 



.30318 



Instruments 



Mag'r Dip Circle 



13 

 13 

 13 



13 

 13 

 13 

 13 

 13 



13 



13 

 13 

 13 

 13 



13 

 13 



13 



177. 4X 

 177. 4X 



Cykenaica. 



Marsa Susa 

 Derna 



Tolmetta. . 

 Tobruk 



Bengasi 



32 54.5 N 



32 45.6 N 



32 43.9 N 

 32 06.0 N 



32 05.2 N 



Feb 

 Feb 

 Feb 

 Feb 

 Feb 

 Jan 

 Feb 

 Feb 

 Feb 

 Feb 

 Jan 

 Jan 

 Jan 



h h h 



10.5,16.8 



11.6 



10.8to 17.2 (dv) 

 11.3,16.3 



10.5,16.5 



10.6.11.5 



14.7,16.8 



11.3,15.0 



13.0 to 16.3 (dv) 



10.1 to 16.3 (dv) 



4 58.5 W 

 4 58.6 W 

 4 42.7 W 

 4 42.7 W 



5 13.6 W 



4 17.4 W 



4 18.2 W 



5 22.0 W 

 5 22.9 W 

 5 22.0 W 



h h 

 14.9 ... 



11.0 



14.8 

 14.9 



11.7 



45 43.4 N 



45 27.6 N 



45 27.6 N 

 44 26.0 N 



44 53.6 N 



h h 

 10.3,11.1 



13 6,14 6 

 14.6,15.5 

 10.2,11.1 



13.3,14.3 



c. g. s. 

 . 28284 



. 28391 

 .28355 



2S762 



10 

 10 

 10 

 10 



10 

 10 

 10 



10 

 10 

 10 



202.1257 



202.1257 

 202.1257 



Egypt. 



Barrani . 

 Sellum . . 



Negeiyila. . . 

 Matruh 

 Alexandria . 



Alexandria, Secondary. 



Kail lk-ad 



Daba 



]'.\ I mi 33 id 

 Barrage .... 



Suez. 



Suez, Secondary 



Helwan Observatory, N . 



31 37.4 N 

 31 34.3 N 



31 29.4 N 

 31 22.8 N 

 31 16.4 N 



31 16.4 N 

 31 08.8 N 

 31 02.6 N 



30 48.4 N 

 30 12.5 N 



29 57.9 N 



29 57.9 N 

 29 51.6 N 



Apr 30, 

 May 3, 

 May 4 , 

 Apr 27. 



Apr 23, 

 Mar 7, 

 Mar 8, 

 Mar 8, 

 Mar 9 . 

 Apr 19, 

 Apr 15, 

 Apr 16, 

 Apr 13, 

 Mar 20, 

 Mar 21. 

 May 19, 

 May 20, 

 May 20, 

 Aug 28, 

 May 21, 

 Mar 13, 

 Mar 14, 

 Jul 12. 

 Jul 19, 

 Jul 19, 



h h 

 .11.1.16.7 



,11.2,16.6 

 ,16.3 



s s 

 8.5 

 11.3 

 15.9 

 10.5 

 17.8 

 9.5 



,13.0 



,16.3 



.13.1.16.7 



,16.8 



to 17.4 (dv) 



,16.5 



,17.8.18.2 



,13.1.15.3 



,11.5,16.6 



8.8. 



9.5. 

 15.4, 



9.0 

 17.2, 

 10.2, 

 16.7, 



10.2 



11.8 



17.4 ... 

 11.0,16.5 



18.4 



11.6 



18.0 



3 33.4 W 

 3 52.2 W 

 3 50.9 W 

 3 35.9 W 

 3 18.8 W 



2 32.4 W 

 2 33.0 W 



2 33.3 W 



3 16.7 W 

 3 01.3 W 

 2 59.7 W 

 2 43.5 W 

 2 18.4 W 

 2 19.1 W 

 1 55.2 W 

 1 56.7 W 



1 22.0 W 



1 56.3 W 



2 10.2 W 

 2 10.0 W 

 1 36.6 W 

 1 37.2 W 

 1 38.0 W 



h 

 14.7 



15.0 

 14.7 

 14.5 

 16.6 



15.3 



14.8 



14.6 

 15.7 

 13.9 



14.2 



11.4 

 14.2 



43 39.7 N 



43 35.4 N 

 43 30.0 N 

 43 18.0 N 

 42 57.1 N 



42 56.9 N 

 42 51.4 N 



42 33.3 N 

 42 14.4 N 

 41 08.0 N 



40 49.4 N 



41 OS.O N 

 40 49.4 N 



h h 



9.8,10.6 



17.8 



9.5,10.5 

 9.8,10.7 



10.0,10.9 



11.6,12.4 



11.3.12.5 

 9.7,10.6 



10.3,11.1 

 10.0,10.8 



11.2,12.4 

 17.1 . 

 10.1,11.0 

 15.9 



9.2. 9.9 

 10.4,11.3 

 15.9,16.8 



9.5,10.4 

 17.6,18.1 

 10.7,11.3 

 17.0,17.6 



c. g. s. 



L'S.S.-'I 

 . 28885 

 . 29203 

 . 29234 



21I42S 



.29438 



29428 



. 29503 

 . 29507 



. 29990 

 .30167 

 .30192 

 .30188 

 . 30096 

 . 30203 

 .30012 

 . 30032 

 . 29924 

 . 29980 

 . 29948 



10 

 10 

 10 

 10 

 10 



10 

 10 

 10 

 10 



10 

 10 

 10 



10 

 10 

 10 

 10 

 10 

 17 

 10 



10 



10 

 17 

 17 

 17 



202.1257 



202.1257 

 202.1257 

 202.1257 

 202.1257 



202.1257 

 202.1257 



202.1257 

 202.1257 

 202.1257 



223.1350 

 202.1257 



1 15X rejected. 



1 14X rejected. 



