Trigonometrical Survey. 609 



O 1 It 



Wendover - 63 57 7 

 Kinsworth - 78 21 12 

 Stanmore - 37 41 41 which triangle gives 



the distance of Stan more fromj K -. en , ~ 10 Z ^ J^' 1 [feet. 



In consequence of Bushy Heath intercepting the view towards 



the east from Stanmore, it became necessary to choose a station 



on the former. To determine the distance, the angles at the 



two stations were taken very accurately; they were as follows, 



Stanmore - 42 11 21,5 

 Bushy Heath 135 35 40,5 



Kinsworth, . . . which gives 5483,3 feet for the 



required distance. 



To determine the distance of the station on Pen Church Tower, 



we have two angles in the following triangle, viz. 



c ' o I which, corrected for calcula- 



Stanmore - 23 44 48 . ' becomes 



Pen Tower- 118 1 54 J tlon > Decomes > 



Wendover - 38 13 18,25 

 Stanmore - 23 44 48,25 

 Pen Tower - 118 1 54,5 which triangle gives 



the distance of Pen fromi Ca " " ^9 02 7 L feet. 



[Stanmore = 75325,4/ 



With this distance of Stanmore from Pen, found from the 



last triangle, and also that between Stanmore and Hanger Hill, 



derived from the triangle, Bagshot Heath, Hanger Hill, and 



Stanmore, together with the included angle at Stanmore, viz. 



109' 28' 22",5, we get the distance of Pen to Hanger Hill 



Tower = 94631,8 feet. The same distance has been found 



before, in a shorter and more direct way, being 94640,5 feet: 



the difference is only 8,7 feet ; a sufficient proof that the distances 



given for the survey of this intricate and woody country, are 



