2 Rev. S. J. Perry on Magnetic Observations [Jan. 10 



Table I. 



Station. 



Place of Observation. 



Latitude. 



Longitude. 



Authority. 



Cape Town 

 Bombay . . 



Aden .... 



Port Said 

 Malta .... 



Palermo . . 

 Naples . . 

 Pome .... 

 Florence. . 

 Moncalieri 



The College 



Near Church at entrance 



Garden of Monastery .... 

 Garden of Governor's Pa- 

 Observatory Coll. Rom. . . 



33 56 3 S. 

 18 54 25 1ST. 

 18 56 7 



12 46 15 

 31 13 



35 53 50 

 38 6 44 



40 51 46 6 



41 53 52-2 



43 46 41 



44 59 53 



h. m. s. 



1 13 55-0 E 

 4 51 39-63 

 4 51 43-63 



3 40-63 



2 9 12 



58 4-63 

 53 24-17 

 56 58-86 

 49 54-7 

 45 1-46 

 30 48 77 



N.A. 



C. des Temps 

 » 



Atlas. 



C des Temps 

 N.A. 



55 

 55 

 55 



Observatory. 



The Magnetic Dip. 



The long sea voyage, with its great variation of temperature, was 

 very trying for the delicate portions of the instruments, and as we 

 found that No. 1 Needle had been slightly injured by rust, it was 

 never used during our home journey. In the last column of Table II 

 the daily mean values of the dip are entered, but it was only at Cape 

 Town and at Bombay that observations could be taken on more than 

 a single day. Needle No. 2 seems to read about 30" higher than 

 No. 3, but no correction has been applied to either, as the amount is 

 considerably less than the usual errors of observations. 



Table II. 



Station. 



Date. 



Needle 

 No. 1. 



Needle 

 No. 2. 



Needle 

 No. 3. 



Daily 

 Means 













o 







o 







o 







Cape Town . 



1874. July 



27 



-56 6 7 



-55 



57 



47 



- 56 



3 



30 



- 56 



2 



28 



August 



19 





-56 



4 







- 56 







30 



- 56 



2 



15 



Bombay Coll. 



1875. April 



7 











20 



4 



16 









„ Ob- 















20 



9 



15 



20 



' 6 



46 



servatory . . 



55 



10 











19 



14 



5 



19 



14 



5 





55 



18 





19 



15 



15 









19 



15 



15 







27 





5 



28 



9 









5 



28 



9 



Port Said . . 



May 



55 



15 





42 



33 



35 



42 



30 



12 



42 



31 



54 



Malta 



24 











51 



36 



42 



51 



36 



42 



Palermo .... 



55 



29 





54 



17 



47 



54 



18 



28 



54 



18 



8 



Naples .... 



June 



3 





57 







13 



57 







33 



57 







23 





55 



8 





58 



51 



53 



58 



49 



56 



58 



50 



55 



Florence. . . . 



55 



19 





60 



13 













60 



13 







Moncalieri . . 



55 



21 





62 



55 



1 



62 



56 



23 



62 



55 



42 



As previous observations of the magnetic dip, taken at different 

 times at several of the above stations, have been collected and reduced 



