304 



Proceedings of the Royal Irish Academy. 



The foregoing oTDserratioris haying heen gTouped relatively to 

 direction, the mean true direction corresponding to each group having 

 "been taken, and a classification according to frequency of occurrence of 

 each direction having been made, there resulted the following Table : — 



JortfTS M^T) LrN^ES OE DrEECTioif GEorPEi) AXD EEnrcED TO Tetje 



Beaeln-gs. 



Easterly. 



"Westeext. 



Relative 



Rank 



as to 



Frequency. 



Direction. 



Number 

 observed. 



Total 



Relative 



Rank 



as to 



Frequency. 



Direction. 



Number 

 observed. 



Total. 



14 



r 55' E. 



6 





20 



1° 54'^. 



5 





11 



b" 43' ,, 



9 





15 



5° 26' ,, 



6 





12 



10" 19' ,, 



7 





9 

 21 



9" 27' „ 

 14" 17' „ 



10 

 5 





1 



16" 23' ,, 



26 





31 



21" 40' ,, 



3 





4 



21" 20' „ 



13 





2 



25° 52' „ 



19 





29 



25° 50' ,, 



3 





5 



22 



29" 11' „ 

 34" 27' „ 



12 









25 



30" 08' „ 



4 





6 



39" 57' ,, 



12 





18 



35" 36' „ 



5 





3 



43" 51' „ 



14 





28 



48" 30' ,, 



4 





10 

 8 



47" 42' „ 

 50" 12' „ 



10 

 11 





26 



66" OS' „ 



4 





23 



59" 24' ,, 



5 





33 



61" 30' ,, 



1 





27 



65" 15' ,, 



4 





19 



72" 35' „ 



5 





12 

 16 



70" 39' „ 

 78" 15' „ 



7 

 6 





32 



81" 45' ,, 



2 





17 



84° 55' ,, 



6 





30 



85" 10' „ 



3 



92 



7 



89° 45' „ 



12 



152 



Ranging the more important of those directions, relatively to their 

 frequency of occurrence, we have the folloTving series : — 



1 



16° 23' E. 



26 occurrences. 





89" 46' W. 



12 occ\irrences. 



2 



25" 52' TT. 



19 „ 



8 



50" 12' W. 



11 



3 



43" 51' W. 



14 



9 



9° 27' W. 



10 



4 



21" 20' E. 



13 



10 



47" 42' W. 



10 



5 



29" 12' W. 



12 „ 



11 



5" 43' E. 



9 



6 



39° 59' TV. 



12 









