200 Mr. Nixon on the Measurement by Trigonometry of the 



AtDodFell 



e 4 feet. 



0° 1' 15" E. 

 3 55 



40 

 10 

 20 

 40 



18 28 

 9 15 

 5 15 



1 25 D. 

 35 



16 7 



1 6 40 



25 



Calculation of the mean differences of Level of the Stations, 



Whernside above Ingleborough. 



Feet. 

 By reciprocal observation 41-2 

 By obs. from Pen-y-gent 39-3 



— Noughtberry 38*5 



Dod 38-5 



Ar. mean 39*4 ; cor. mean 39*8 



Ingleborough above Pen-y- 

 gent^ Wall. 

 By reciprocal obs. 91*7 



By obs. from Whernside 89*8 



Noughtberry93*9 



Dod 91-2 



Arithm. and corr. mean 91*7 



Ingleborough above Nought- 

 berry Hill. 

 By reciprocal obs. 170*5 



By obs. from Whernside 167*8 



Pen-y-gent 168-3 



Dod Fell 170-1 



Ar. mean 169*2; cor.mean 168*9 



Ingleborough above Dod Fell. 

 Feet. 

 By reciprocal obs. 186*2 



By obs. from Whernside 183*5 



Noughtberry 186*6 



Pen-y-gent 186*7 



Ar.mean 185*8; cor. meanl 85*7 



Whernside above Pen-y- 

 gent. 

 By reciprocal obs. 131*0 



By obs. from Inglebro'. 1 32*9 



Dod Fell 129*7 



Noughtberry 1 32*4 



Ar. mean 131*5; cor.mean 131*4 



Whernside above Nought- 

 berry Hill. 

 By reciprocal obs. 209*0 



By obs. from Inglebro' 211*7 



Pen-y-gent207*6 



Dod Fell 208*6 



Ar.mean209*2; cor.mean209*l 

 Whernside 



