688 



The Account of a 



The angle between Albury and Elmdon Steeples was observed, at Henham on the 

 Mount, and found to be 72 47' 38". The distances from the former stations to the 

 latter are 37882 and 45275 feet, which give the following triangle : 



Henham - 72°47'38" 



Albury - 60 28 27 



Elmdon - - 46 43 35, from whence we get the distance 

 between Albury and Elmdon zz 49701 feet. 



Names of Stations. 



Observed 

 angles. 



Distances. 



Henham on the Mount 

 Elmdon - 

 Tbaxted Steeple 



1 11 



106 30 50 



23 2 40 



JThaxted - 



{ 



Feet. 

 22988 

 56302 



Elmdon - 



Thaxted ... 



Balsham Steeple 



71 54 IO 



53 » 8 44 



J- Balsham - « 



■ { 



55262 

 65504 



Elmdon - 



Balsham - - 



Babraham Mount Station 



23 38 46 

 48 4° 38 



> Babraham Mount 



{ 



43559 

 23251 



Elmdon - 

 Babraham Mount - 

 Triplow Steeple 



29 46 30 

 32 56 30 



> Triplow 



{ 



24806 

 29185 



The angle at Henham on the Mount, between Hatfield Broad Oak and Thaxted Steeples, 

 is 109 10' 44''; and the distances of the latter stations from the former one are 39266 

 and 22988 feet ; from these data we have the triangle, 



Henham - - 109 10' 44" 



Thaxted - - 45 56 29 



Hatfield Broad Oak - 24 52 47, which gives 51608 feet for 

 the distance of Thaxted from Hatfield Broad Oak. 



Hatfield Broad Oak . 

 Beauchamp Roding 

 High Easter Steeple 



51 9 50 

 64 26 10 



>High Easter - - 



{ 



24858 

 21460 



Severndroog Tower 

 Langdon Hill 

 Horncburch Steeple 



2169 

 24 10 20 



> Hornchurch 



- { 



50989 

 44832* 



Langdon Hill - 

 Gravesend - 

 Horncburch Steeple 



11 57 33 

 50 59 



>Hornchurch 



{ 



44837* 

 56438 



