M A <; N ET 1 (' S !' 



59 



The above values of $ will furnish the means for the introduction of the total 

 intensity at the remaining stations where the Lloyd needles alone have be< a used. 



Comparison of values for $>, with determinations by other observers. 



13 - . 



13.40, 



13.41 



13. II 



13.51 



13.46 



13.52 



13.50 



13.4G 



13.47 



13.42 



13.89 



13.30 



13.49 

 13.47 

 13.50 

 13.49 

 13.43 



13.78 

 13.80 

 13.02 

 13.53 

 13.68 



L3.90 

 13.84 



13.93 



dip 72° 00' 



