82 



Tekm-Day Observations of Magnetometers, 1844. 



Declination 

 Obsorvatioo, 



10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 50 

 55 



10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 50 

 55 





 5 

 10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 50 

 55 



July 24, 25. 



Declina- Bifilab Balance Declina- 

 tion. Corrected. Corrected. tion. 



25 



25 



24-50 

 25-02 

 24-35 

 24-69 

 24-52 

 23-70 

 23-22 

 23-68 

 23-78 

 23-54 

 22-71 

 22-60 



Si-.. Div. .Vic. Di 



663-9 

 663-9 

 659-7 

 656-5 

 653-0 

 650-6 

 648-8 

 647-2 

 647-4 

 647-6 

 647-7 

 648-0 



656-9 

 662-9 

 666-1 

 663-5 

 662-9 

 664-7 

 664-9 

 669-3 

 673-6 

 676-6 

 677-9 

 685-5 



Bifilab Balance 

 Corrected. Corrected, 



25 



25 20-23 

 20-35 

 21-04 

 20-18 

 lS-84 

 18-21 

 17-94 

 15-67 

 14-24 

 13-46 

 15.36 

 13-99 



25 08-09 

 04-93 

 08-08 

 12-11 

 14-10 

 13-67 

 14-58 

 16-73 

 17-53 

 16-06 

 13-96 

 13-07 



25 



7^. 

 544-4 

 545-8 

 549-1 

 548-0 

 546-0 

 545-5 

 537-0 

 532-5 

 532-1 

 535-6 

 527-9 

 527-4 



81-. 



719-8 

 718-9 



716-4 

 714-4 



716-2 



717-1 

 714-2 

 710-2 

 709-5 



710-0 



709-6 



709-1 

 712-7 

 719-7 

 724-2 

 728-1 

 727-7 

 734-1 

 737-2 



731-2 

 717-7 

 708-2 

 708-3 

 705-9 

 697-1 

 694-6 

 691-7 

 687-6 



685-7 

 680-7 



675-9 

 677-3 



675-3 

 672-2 

 671-5 



670-2 

 666-9 



August 30, 31. 



Declina- 

 tion. 



Bifilab 



Corrected. 



Balance 

 Corrected. 



25 



25 



w. 



14-06 

 13-46 

 12-90 

 11-95 

 11-66 

 11-41 

 10-97 

 11-68 

 12-82 

 13-67 

 12-63 

 11-51 



25 



649-4 

 649-7 

 648-1 

 647-2 

 647-0 

 647-0 



642-6 

 642-6 

 640-9 

 640-9 

 641-7 



638-3 

 634-3 

 629-3 

 628-5 

 626-2 

 625-6 

 624-0 

 621-4 

 620-3 

 619-8 

 618-2 

 616-8 



616-9 

 618-8 

 618-1 

 618-4 

 619-2 

 618-2 

 614-7 

 612-9 

 609-2 

 606-3 

 600-2 

 590-2 



572-8 

 552-2 

 523-5 

 499-2 

 478-6 

 462-7 

 454-7 



458-3 

 465-5 

 474-8 

 485-8 



Declina- 



TION. 



Bifilab Balancb 

 Corrected, Corrected. 



25 



11-68 

 10-70 

 09-56 

 06-37 

 05-58 

 06-24 

 06-57 

 07-44 

 07-20 

 08-43 

 09-29 

 1006 



25 



25 



25 



12-62 

 12-48 

 12-85 

 12-56 

 13-36 

 13-39 

 14-64 

 15-54 

 18-23 

 19.12 

 20-27 

 22-64 



ISh. 



n''. 



BiFiLAit. Observed 2'» after the Decl'iDation, a;=:0 OOOUO. 



Balanoic. Observed 3™ after the Oeclination, Jfc=0-0000085. 



The temperature of the bifilar and balance magnets, and the observers' initials, will be found at the corresponding hours in the Hourly 

 Observations of Magnetometers. 



When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous; 

 observation being appreciable, the micrometers were not altered. 



