Term-Day Observations of Magnetometers, 1844. 



81 



[ GOttiiigen 

 Moan Time 



of 

 Declination 

 Observation. 



July 24, 25. 



Declina- 

 tion. 



BiFILAB 



Corrected. 



Balance 

 Corrected, 



Declina- Bifilar Balance 

 TION. Corrected. Corrected. 



Declina- 

 tion. 



Bifilar Balance 

 Corrected. Corrected, 



Declina- 

 tion. 



Bifilar 

 CoiTected. 





 5 



10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 SO 

 55 







5 



10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 SO 

 55 





 5 

 10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 SO 

 55 





 5 



10 

 IS 

 20 

 25 

 30 

 35 

 40 

 45 

 SO 

 55 



25 



25 



25 



25 



655-4 

 655-9 

 657-2 

 657-7 

 657-4 

 657-7 

 658-4 

 658-7 

 658-4 

 659-1 

 658-6 

 657-7 



657-8 

 657-3 



657-0 



656-3 



656-4 



655-9 



657-6 

 657-2 



656-6 



656-5 



655-0 



648-4 

 648-5 

 649-1 

 «4S-5 



648-9 

 648-0 



25 



25 



646-8 



646-8 

 647-7 



646-9 



6-48-5 

 647-7 

 649-7 



649-0 



646-2 

 645-0 

 642-8 

 645-9 



646-9 



648-0 



645-0 

 644-1 



642-6 

 643-2 

 643-4 

 643-7 

 641-5 

 645-0 

 638-3 

 640-7 

 640-7 

 642-0 

 646-0 



Sc. Div. Mic. Div. 



644-9 

 628-7 

 619-9 

 619-8 

 634-4 

 639-5 

 629-9 

 621-6 



25 



608-5 



611-8 

 614-5 

 615-8 

 613-9 

 615-1 

 620-5 

 616-2 

 618-7 

 621-6 

 623 

 621-6 

 626-7 



25 



25 



19-12 

 18-75 

 17-40 

 18-38 

 19-96 

 19-76 

 20-47 

 21-59 

 21-84 

 24-06 

 24-60 

 25-09 



23". 



1". 

 524-7 

 527-0 

 528-8 

 539-1 

 534-1 

 532-9 

 531-0 

 532-0 

 527-9 

 528-9 

 519-7 

 518-8 



BiFiLAK. Observed 2^ after the Declination, A;=0-000140. 



Balance. Observed 3™ after the Declination, /:=0'0000085. 



The temperatnre of the bifilar and balance magnets, and the observers' initials, will be fonnd at the corresponding hours in the Hourly Observations of Mag- 

 netometers. 



When double commas f„) 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. 



July 24d I8I1 10m, A minute insect was seen creeping over the west cross-plate of the balance magnet, which, perhaps, has caused some motion in the needle ? 

 At I8I1 45m the box was lifted from the instrument and the insect was removed. 



MAG. AJJD MET. OBS. 1844. 



