440 



Trig07iometrical Height of higlehorough. 



As the title measured 25*9 in height, it would have been at 

 high water 20*8 below the pole top, or about the level of the 

 highest tide in my list ; at least a 30-ft. tide. It may therefore 

 be concluded, as indeed Mr. Binns intimates, that the point 

 levelled to was some feet above low water. In proof, he states 

 that the canal, when full, is 76^ ft. above the sill of Glasson 

 dock gates, (consequently about the level of the channel of 

 the Keer,) from which the tide sometimes ebbs out three to 

 five feet. 



The height of Ingleborough may now be stated as 2370'5ft. 

 above the mean level of the Irish Sea, and as 



2384*5 ft. above meaii low water spring tides * ; 

 2379-5 — — — neap — 

 2356*0 — mean high water spring tides; 

 2362*5 — — — neap — . 



The height of each sector station above mean low water 

 spring tides, obtained on the same plan as that of Inglebo- 

 rough, is given in the following list. 



By obs. at Breakwater . . 



Hest Wall . . . . 

 Warton Crag . . 

 Farleton Knot 

 Hutton-Roof Moor 

 Cloiigha Pike . . 

 Ingleborough . . . . 

 Aqueduct Bank 



Mean 



Having measured from three intermediate stations in 

 Wharfdale, the difference of level between Ingleborough and 

 Roseberry Topping, the resulting altitude of the latter ex- 

 ceeded considerably its elevation above the German Ocean at 

 Redcar, as measured by Col. Mudge from the intermediate 

 station at Burleigh Moor. It is however evident that either 

 the data for determining its distance from Burleigh Moor are 

 incorrectly stated, or that an error of — 1802 feet ( = — 33 ft. 

 in the altitude,) has been committed in the calculation. 



The height of Black Comb measures 1989*8 from Farleton 

 Knot, 1997-4 from Hutton-Roof Moor, 1998*4 from Clougha, 

 and 20057 from Ingleborough; mean 1997*8. Col. Mudge 

 states it at 1919 feet. 



Chapel Allerton, near Leeds, JoHN NiXON. 



Feb. 5th, 1833. 



* Hitherto called 2374*5 ft. Mudge makes it 2361 ft. 



f Rejecting the obs. marked (C). X Summit of moor, 91 16 ft. 



