118 MR HARVEY on a Remarkable Case of Magnetic Intensity 



The results, however, may be more conveniently examined in a 

 Table. 



When these conclusions were obtained, the Chronometer had 

 not been in motion for some months. The time at which it stop- 

 ped being 9 h 7 m 50 s , will of course determine the respective posi- 

 tions of the hour, minute, and seconds hands, with respect to the 

 oscillating bar, or the magnetic meridian. These particulars be- 

 came necessary to be attended to, in consequence of the strong 

 polarities of the three hands. 



In two subsequent experiments, xu being directed to the 

 north, the intensity at three inches above the crystal was 94.70, 

 and at five inches 97.42. 



Finding that such remarkable changes of intensity resulted 

 from merely turning the Chronometer, similar experiments were 

 performed at the same distance above the middle of the bottom 

 of the box, and the results of which are recorded in the follow- 

 ing Table, 



and from which it appears, that the maximum intensity was 

 found when vi pointed to the north, and the minimum when xu 



