DIURNAL MOVEMENT OF THE DECLINATION 
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“ DIURNAL MOVEMENT OF THE HORIZONTAL INTENSITY 
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December 
| [, 1 i November \— 
December ae el a es as 3 
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Yovember =a iia! October oa 
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Set Z | i August, i 3 
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August | 7 Jinn |= lzaale ry ial i H eee + 1 2 RG 
| ea | = | Aly 5s ~ { ad 
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roy ead Be LS Ws LE AY BUS il Ba Hay | | 2 
July = t 5 ay > 4 jt ful 4 a4 
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REPRESENTATION OF THE DIURNAL MOVEMENT OF THE DECLINATION AND OF THE HORIZONTAL INTENSITY 
The proportions are so chosen, that the monthly contiqurations shew the movement of the North end of a needle treely suspended in the direction of the magnetic force , supposing the total Intensity to be constant. ~ 
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