18 



Hourly Observations of Magnetometers, March 28 — April 2, 1845. 



Gbttingen 





BiFILAR. 



Balance. 



J> re 



Gbttingen 

 Mean Time 



Declina- 



Bifilar. 



Balance. 



^ C3 



Mean T 



me 



Declina- 











t. -.J 



1 







u -^ 



of Declina- 



tion. 



Cor- 



Thermo- 



Cor- 



Thermo- 





of Declina- 



tion. 



Cor- 



Thermo- 



Cor- 



Thermo- 





tion Obs. 





rected. 



meter. 



rected. 



meter. 



.Q t— ( 



o 



tion Obs. 





rected. 



meter. 



rected. 



meter. 



o 



d. h. 



m. 



o 



Sc. Div. 



o 



Mic. Div. 



o 





d. h. 



m. 



o 



Sc. Div. 



o 



Mic. Div. 



° 



28 5 







25 14-20 



544-7 



49-4 



558-9 



50-0 



B 



31 13 







25 10-13 



540-2 



48-3 



535-2 



48-3 



H 



6 







12-51 



542-3 



49-7 



565-0 



50-2 



W 



14 







09-98 



539-0 



47-8 



540-0 



47-7 



H 



7 







12-11 



542-2 



49-8 



562-2 



50-2 



W 



15 







09-24 



537-4 



47-3 



542-1 



47-1 



H 



8 







1211 



540-9 



49-8 



556-7 



50-0 



W 



16 







07-74 



535-2 



46-8 



545-6 



46-5 



H 



9 



It 



25 08-68 



540-4 



49-6 



551-4 



49-5 



W 



17 







08-82 



535-6 



46-3 



544-5 



45-8 



H 



10 



of 



24 56-27 



541-6 



49-2 



547-5 



49-1 



W 



18 







08-63 



535-4 



45-8 



546-2 



45-2 



H 



11 



Of 



25 04-91 



525-6 



48-8 



545-4 



48-7 



H 



19 







10-43 



533-9 



45-3 



546-7 



44-6 



W 



12 







10-13 



533-7 



48-4 



539-7 



48-5 



H 



20 







08-39 



532-4 



44-8 



547-0 



44-1 



W 



















21 



4 



07-67 



529-3 



44-4 



553-7 



43-7 



B 



13 







25 11-71 



535-7 



48-0 



542-9 



47-9 



H 



22 







08-53 



524-4 



44-0 



554-3 



43-6 



W 



14 







11-21 



533-9 



47-7 



547-4 



47-3 



H 



23 







11-07 



522-6 



44-0 



556-1 



44-0 



W 



15 







11-64 



533-9 



47-3 



548-9 



46-7 



H 



1 







14-04 



522-3 



44-1 



548-1 



44-5 



W 



16 







1016 



534-6 



46-9 



549-3 



46-2 



H 



1 







17-26 



526-8 



44-6 



544-5 



45-1 



W 



17 







09-96 



532-2 



46-4 



551-9 



45-7 



H 



2 







17-98 



530-9 



45-1 



545-1 



45-9 



W 



18 







10-53 



533-9 



46-0 



549-1 



45-3 



H 



3 







17-29 



533-4 



45-8 



550-2 



46-6 



W 



19 







0912 



532-9 



45-7 



547-4 



45-0 



W 



4 







15-61 



538-5 



46-5 



546-7 



47-3 



W 



20 







10-94 



533-1 



45-3 



547-0 



44-6 



W 



5 







13-90 



542-0 



47-1 



549-1 



47-9 



W 



21 







1314 



526-3 



45-0 



550-1 



44-4 



W 



6 







12-42 



545-5 



47-7 



550-2 



48-6 



H 



22 







14-71 



522-9 



44-8 



552-9 



44-5 



W 



7 







12-02 



543-4 



48-3 



5500 



49-1 



H 



23 







15-98 



521-4 



44-8 



555-0 



44-8 



W 



8 







11-98 



546-3 



48-7 



549-3 



49-2 



H 



29 







13-36 



528-3 



44-9 



548-0 



45-3 



W 



9 







07-64 



541-6 



48-7 



5510 



49-2 



H 



1 







18-23 



537-9 



45-4 



535-3 



46-0 



W 



10 







10-50 



543-3 



48-7 



544-0 



49-1 



H 



2 







21-41 



533-9 



460 



536-6 



46-7 



W 



11 







12-18 



542-1 



48-6 



540-5 



48-8 



B 



3 



3 



21-14 



542-8 



46-7 



548-7 



47-4 



W 



12 







12-08 



540-8 



48-4 



542-7 



48-5 



B 



4 







18-60 



535-9 



47-4 



565-5 



48-2 



W 



















5 







16-79 



543-8 



48-0 



567-9 



48-8 



W 



13 







25 11-41 



540-7 



48-1 



539-3 



48-0 



B 



6 







12-89 



541-1 



48-6 



575-9 



49-2 



W 



14 







10-87 



540-0 



47-7 



535-3 



47-6 



B 



7 







07-37 



548-8 



49-0 



582-7 



49-4 



H 



15 







09-56 



536-2 



47-3 



538-7 



47-1 



B 



8 







10-33 



541-9 



49-1 



577-4 



49-5 



H 



16 







11-91 



539-7 



46-9 



528-6 



46-5 



B 



9 







09-30 



543-9 



49-0 



575-2 



49-3 



H 



17 







10-01 



536-8 



46-4 



528-9 



45-9 



B 



10 



Of 



05-69 



539-3 



48-9 



54M 



49-0 



H 



18 







08-32 



537-9 



45-9 



532-9 



45-3 



B 



11 



ot 



03-90 



530-7 



48-6 



518-7 



48-7 



B 



19 







08-52 j 



536-6 



45-4 



538-3 



44-7 



H 



12 







07-85 



533-7 



48-3 



506-8 



48-4 



B 



20 







08-56 



536-7 



44-9 



543-5 



44-2 



H 



















21 







08-01 



532-6 



44-5 



547-9 



43-8 



W 



30 13 







25 11-35 



538-9 



43-0 



539-9 



43-2 



W 



22 







08-41 



528-4 



44-1 



545-8 



43-6 



H 



14 







10-95 



536-9 



42-9 



547-6 



43-1 



W 



23 







11-98 



526-0 



43-9 



5400 



43-7 



H 



15 







11-12 



537-1 



42-8 



550-8 



430 



W 



2 







15-29 



525-2 



43-8 



535-4 



44-0 



H 



16 







09-74 



536-1 



42-7 



554-3 



42-8 



W 



1 







18-55 



527-6 



44-1 



522-0 



44-6 



H 



17 







09-82 



534-7 



42-6 



554-8 



42-5 



W 



2 







20-99 



531-4 



44-8 



529-1 



45-7 



H 



18 







10-01 



536-6 



42-4 



554-1 



42-2 



W 



3 







21-00 j 



537-0 



45-9 



539-4 



47-2 



H 



19 







09-66 



534-8 



42-1 



558-5 



41-9 



B 



4 







1803 



539-3 



47-3 



542-5 



48-7 



H 



20 







09-02 



533-1 



41-9 



560-8 



41-8 



B' 



5 







15-34 



541-5 



48-6 



544-2 



50-0 



H 



21 







09-44 



531-0 



41-8 



560-1 



41-7 



H 



6 







13-49 



544-2 



49-8 



540-8 



50-9 



B 



22 







10-00 



527-0 



41-8 



562-6 



42-0 



H 



7 







12-15 



545-5 



50-6 



551-5 



51-5 



B 



23 







11-95 



524-2 



41-9 



561-0 



42-5 



H 



8 







08-18 



545-9 



50-9 



555-8 



51-5 



B 



31 







14-60 



525-3 



42-4 



545-5 



43-4 



H 



9 







09-35 



543-9 



50-8 



556-3 



51-3 



B 



1 







17-93 



528-7 



43-2 



541-9 



44-4 



H 



10 







11-00 



545-8 



50-7 



549-6 



51-0 



B 



2 







19-04 



532-7 



44-2 



538-1 



45-5 



H 



11 







11-07 



545-7 



50-4 



541-7 



50-5 



W 



3 







18-84 



537-0 



45-4 



542-3 



46-7 



B 



12 







09-74 



545-1 



50-0 



536-1 



49-9 



W 



4 







16-48 



539-0 



46-6 



546-9 



48-2 



H 



















5 







13-70 



539-6 



47-9 



551-4 



49-4 



B 



13 







25 09-76 



541-8 



49-5 



532-9 



49-3 



W 



6 







12-46 



542-8 



49-1 



554-7 



50-2 



W 



14 







10-36 



542-3 



48-8 



535-7 



48-5 



W 



7 







12-28 



543-5 



49-8 



553-5 



50-7 



W 



15 







09-79 



540-2 



48-2 



540-2 



47-7 



W 



8 







12-35 



545-1 



50-0 



549-6 



50-7 



W 



16 







09-51 



539-4 



47-6 



541-5 



46-8 



W 



9 







12-09 



545-9 



50-0 



546-8 



50-4 



W 



17 







08-79 



539-4 



46-9 



542-2 



46-0 



W 



10 







12-15 



545-1 



49-7 



544-1 



50-0 



W 



18 







08-14 



539-4 



46-3 



535-4 



45-3 



W 



11 







11-61 



542-5 



49-3 



545-2 



49-5 



H 



19 







06-76 



539-3 



45-6 



540-9 



44-6 



B 



12 







1235 



546-4 



48-8 



541-1 



490 



H 



20 







06-41 



535-3 



45-0 



547-4 



43-9 



B 







Declination. Torsioi 



1 removed, April 



2"! 2J^ 



-3r.* 



Effec 



t of -H 10° of torsion = -0'-84. 







BiFILAE. 



Observed 2 



"» after tl 



le Declin 



ation, A;= 



:0-00014( 



3. 



Balance. 



Observed 3 



" after tl 



le Declin 



ation, k= 



:0-00001C 



. 



* April 2^ 2^^. The line of detorsion of the suspension thread varied during the observation ; at first it veas about N. 3° E. to 

 S. 3° W. ; it was ultimately N. 5° E. to S. 5° W. 

 t Extra Observations made. 



