DIURNAL VARIATIONS OF THE HORIZONTAL COMPONENT OF MAGNETIC FORCE AT MAKERSTOUN 1843 —1846. 
A2e en eed aa - Trans. Roy. Soc Edin. Vol. XIX. Fart Il Platell 
r AM PM AM 
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ge 4 LA 23 + 5 6 beet 9°30 2 0 2 2.3 a ee «1 7 8 «Mage Maes 1a FZ | 2 3 + 7 
Dec._ Feb. 
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Positive Ordinates indicate increasing Hortzontal Force. Scale, 1 Div.= 0-0004, Hor: Force =1, | 
—~/™ Mean of all. Po det Mean of undisturbed days. 
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Eng by GeaAcdeman 
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