and the motion of Auroral Beams. 





Tconto. 



_Ca^d^ 



j^ 



:^^^v^ 









h. m. 



1840. May 30. Max. 



6 50-55 









Min. 





















Ma^ 











Min. 

















16 35^0 





jllne25: mS" 











July 22. Max. 











Min. 



19 









Max. 





















July 23. mS. 



5 10 









Aug. 28. Max. 





10 40-45 







Min. 



11 35 



11 30-35 



11 30-35 





Max. 



11 50 



















Mp. 



14 40 













15 5 



15 10 





ii' 



15 40 



15 35 



15 35 







16 20-25 









Ma"x. 



16 36 









Min. 



16 45-50 



16 40 







Max. 







17 0-5 





Min. 



1? 20 





17 20 















Mi? 



18 6 



11 65 



18 





utn. 



18 30 



18 20 



18 25 





Max. 



18 35 



18 30 



18 35 







18 60 









mS. 













19 50 









Max! 





23 25 







8,p..,3. M^ 



]l tl 



Is * 45^ *^ 



13 50 



U 55 



mS" 

















22 50 



22 50 



8epi24. Min! 

 mITx. 



I i 



2 15 



So 





Min 









4 35 



Oct. 21. mL". 



10 50 



10 45 



10 45 



10 45-50 



Min. 



11 10 



















Mi?" 



15 15 



15 10-15 



15 15 





Max. 



16 85 





16 30 



16 35 



Oct. 22. Min! 







3 35 





Nov. 28. Max. 







11 45 



2 20 



Dec. 23. Max. 









Max. 



13 10 



13 10 



14 15 



13 25 



14 15 







14 65-60 





£- 



?8 To 



15 20 



18 50 



18 60 



Max. 



22 SO 



22 20 



22 20-25 



22 20-26 



