EEPORT ON THE MAGNETICAL OBSERVATIONS. 7 



magnetic equator northward, when the original values of the Horizontal Forces are 

 now nearly reached, the Vertical Force recovering but slightly ; after this the fluctua- 

 tions of the permanent magnetism are more moderate in amount and gradual in point 

 of time. 



The extent of the magnetical observations made during this voyage, and the precision 

 and intelligence bestowed on them by the officers to whom the duty was confided, merits 

 high praise. Notwithstanding the constant demands on the time of these officers in 

 connection with the general duties of the ship, untiring zeal marked their efforts to 

 worthily contribute to magnetical science, and on these grounds warm acknowledgments 

 are due to them. 



On the return of the " Challenger " to England the duty of assisting in the final 



reduction of the observations and preparing the results for publication devolved upon 



Staff-Commander Creak of this department : he has performed the service with an earnest 



desire to render the work worthy of the expedition. 



F. J. Evans. 



