686 



The Account of a 



From the last triangle, v/e find the distance from Severndroog Tower to the station on 

 Southweald Steeple to be 73795 feet ; this, it will be perceived, is deduced from the 

 distance between the cross on the dome of St. Paul's and Severndroog Tower ; but 

 73791 feet has been found by the triangle, which is derived from the distance between the 

 latter station and Wrotham. A difference of 4 feet on such a distance, all things consi- 

 dered, is not a large quantity. 



Names of Stations. 



Observed 

 Angles. 



Distances. 



Severndroog Tower 



Highbeech ... 



Brentwood Spire 



1 11 



49 8 » 



71 16 44 



\ Brentwood 



{ 



Feet. 

 78558* 

 62727 



Severndroog Tower 



Highbeech ... 



Hampstead Heatb 



51 24 12 



58 29 19 



> Hampstead Heath 



• { 



64855 



59455 



Highbeech - 

 Hampstead 

 St. Paul's 



24 36 5 

 83 1 11 



1 



| St. Paul's 



{ 



61919 

 25966 



As it became necessary to ascertain the situation of a high building near Berkhamstead, 

 which, for distinction sake, I shall style the Gazebo, the instrument was removed from 

 the station on Highbeech, to another farther west of it, as some trees obstructed the view 

 of this object from the former. To get the distance from St. Paul's to this new station, 

 the distance between it and the old one was measured, and found — 460 feet : the angles 

 in the following triangle were also observed. 



Highbeech, old station 66° 32' 47' r 



Highbeech, new station 113 3 46 



St. Paul's which gives the distance from 



St. Paul's to the new station 61738 feet. 



Highbeech, new station 

 Berkhamstead Gazebo 

 St. Paul's 



105 21 44 

 4 1 55 23 



| Gazebo 



{ 



49 6 3» 

 88872 





J 



Southweald 

 Highbeech, old station 

 Stand of Epping Windmill 



16 46 15 

 52 16 51 



J- Epping Windmill 



{ 



46717 



17042* 









Severndroog Tower 



Highbeech - 



Stand of Epping Windmill 



10 8 44 

 122 10 45 



J> Epping Windmill 



- { 



81891 

 17043* 



