532 



LIEUT.-GENEEAL SABINE ON TEREESTEIAL MAGNETISM. 



Observations of the Intensity of the Magnetic Force made in Her Majesty's Ship 

 'Erebus' with Needle R F. 5, and Deflector It. F. 4, between September 1842 

 at Port Louis, and April 1843 at Simon's Bay, Cape of Good Hope. 



Observers Captain Sir Jamks Clakk Ross and Lieut. Alexandee Johw Smith, R.N. 



Date. 



Lat 



Long. 



Method 

 employed. 



Angle of 

 Dollection. 

 Face Eiist. 



Direction of 

 ship's head. 



Intensity. 



Correction 



for 

 Deviation. 



Corrected 

 Intensity. 



Bomarks. 



1842. I . 



Sept. 8.] Running out of 

 Harbour. 



9. 

 13. 



14, 



15. 



16, 



18, 



302 06 

 306 26 

 304 48 



304 30 



304 46 



296 52 



19.' Standing towards 

 I St. Martin's Cove. 



22. St. Martin's Cove. 

 1-55 51 292 28 



Nov. 



11 



Running out of 

 St. Martin's Cove. 

 -55 39 296 00 



-54 24 



12.-62 62 



16 



300 08 



301 05 



-61 32; 301 63 

 Port Louis. 



S. 



N. 



S. 



N. 



S. 



N. 



S. 



N. 



N. 



S. 



N. 



S. 



N. 

 wt. 2 g^s. 

 wt. 3 grs. 

 wt. 4 grs. 



S. 



N. 



S. 



N. 

 wt. 1 gr. 

 wt. 2 grs. 

 wt. 3 grs. 

 wt. 4 gr.-". 

 wt. 5 grs. 

 , 6 grs. 



S. 



N. 



S. 



N. 



S. 



N. 

 , 2 grs. 



3 grs. 

 . 4 grs. 



S. 



N. 

 wt. 2 grs. 

 wt. 3 grs. 

 wt. 4 grs. 



S. 



N. 

 wt. 1 gr.' 

 wt. 2 grs. 

 wt. 3 grs. 

 wt. 4 grs. 



wt. 



wt. 

 wt. 



wt. 



71 



67 

 69 

 66 

 69 

 66 

 69 

 66 

 65 

 69 

 65 

 66 

 62 

 16 

 25 

 33 

 65 

 60 

 64 

 60 



7 



16 

 24 

 33 

 43 

 54 

 63 

 59 

 66 

 62 

 69 

 65 

 17 

 27 

 36 

 70 

 66 

 17 

 27 

 37 

 71 

 67 



8 

 18 

 27 

 38 



38 



46 



38 



01 



56 



51 



16 



19 



35 



35 



48 



02 1 



08 



02 



36 



68 J 



04 



53 . 



32 1 



51 



44 



03 



32 



03 



09 



55 



21 



30 



10 



35 , 



21 I 



21 y 



00 



08. 



28 



35 



47 



35 



33, 



18 



05 



29 



22 



07 



01 



E. I N. 

 E. i N. 



S.S.W. 

 W.S.W. 



s. by w. 



S.E. 

 W.8.W. 



S.W. i w. 



Observed 

 on shoie. 



S.E. 



N.E. by E. 



>10-83 



1-66 



>10-20 



9-95 



Observed 

 on shore. 



y 9-90 



+•03 



— 16 



-•04 



-•15 

 -•10 

 -•04 



-•10 



+ •05 



-•11 

 +•11 



+•16 



11^34 

 10-87 



+•16 10-36 



10^11 



ITuteadf. 



Much motion. 



A great deal of 

 motion. 



Blon-tng hard, with 

 much molion. 



9^82 



9-92 



9^92 



9^93 

 10-02 

 10^06 



10-73 



10-71 



1 1 ' 1 3 Calm and clear. 



Moderate and fine. 



9-90 Upper Dip Home. 



Sept. 22 



St. Martin's Cove. 



-55 51 



292 28 



Observed 



on shore. 

 Face West 



11-04 

 10-79 

 10-73 

 11-00 

 10-89 

 10-94 

 ^10-95 J 



>10-94 



10-94 



