20 CHANGES OF THE MAGNETIC DECLINATION 



at 9 P. M. (see first volume of the Narrative), appears to have been one of the 

 more conspicuous displays. A full record of the rest w^ill be found in the 8th 

 volume of the Smithsonian Contributions to Knowledge, in the collection made by 

 Peter Force, Esq. There are 19 in number. The following statement is given in 

 a foot-note: "The processes have no apparent connection with the magnetic dip, 

 and in no case did the needle of our unifilar indicate disturbance." 



Term-day Observations for Change of Magnetic Declination. — These observations 

 were made at the following dates: January 18-19, February 24-25, March 22-23, 

 April 19-20, May 26-27, and June 21-22, 1854. The readings are given in the 

 following tables : — 



