Trigonometrical Survey. 



723 



The next opportunity which offered, was at the former station and 

 Wendover : the observations were as follows. 





Arbury Hill. July zftb, 1799. Watch regulated. 



Hours. 



Wendover. 



Barome- 



Thermo -| Remarks 





Depressed. 



ter. 



meter. 







/ * 



In. pts. 



Degrees. 



[and there. 



12 



12 8 



28,728 



62 ,0 



Fresh wind from S W. Rather dark weather, sun shining here 



I 



12 3 



28,734 



64 ,2 



Ditto. , Air tremulous, ditto. 



2 



12 II 



28,740 



64 ,0 



Ditto. Ditto, ditto. 



3 



12 IO 



28,738 



6 3 >S 



Ditto. Air more steady, ditto. Clearer. 



4 



12 22 



28,740 



64 ,0 



Ditto. Very steady. Sun shining a little. 



S 



II 50 



28,740 



64 ,2 



Ditto. Ditto. Ditto. 



6 1 



12 17 



28,740 



6l ,0 



Less wind, and the air very clear. Wendover perfectly distinct. 



Wendover. July zftb, 1799. Watch regulated. 



Hours. 



5 A.M. 



6 



7 

 8 



Arbury H. 

 Depressed. 



'a * 



IO 12 



l6 12 



15 26 



14 44 



Barome- 

 ter. 



In. pts 

 29,030 

 29,030 

 29,030 

 29,100 



rhermo- 

 meter. 



Degrees 



S3 > 2 



53 >° 



54 -5 

 54 1° 



b emarks. 



Wind at SW, rather fresh; sun shining, and air very clear. 



Ditto, ditto. 



Less wind, and the air very steady. Arbury Hill very distinct. 

 Little wind. Dew falling very fast. Ditto. 



Another opportunity for making contemporary observations occurred, 

 when the parties were on Broadway Beacon and Epwell : I place 

 them last, because I think them inferior to the others. 





Epwell. 



June 2,6th, 1799. Watch regulated. 



Hours. 



Broadway B. 



Elevated. 



Barome- 

 ter. 



Thermo- 

 meter. 



Remarks. 



12 



i P.M. 



2 

 3 

 4 



/ 11 



6 6 

 6 8 

 6 12 



6 20 

 S 32 



In. pts. 

 29,100 

 29,100 

 29,208 

 29,100 

 29,100 



Degrees. 

 60,5 

 63,2 

 60,7 



59>° 



57>5 



Wind SW. Cloudy. Much rain preceding night. 



Ditto, but calmer ; sun not shining at Broadway. 



Very calm, and cloudy all round. 



Ditto. Appearances of rain in SW quarter. 



Foggy, but easily perceive the tent at Broadway Beacon, 



Broadway Beacon. June 26th, 1799. Watch regulated. 



Hours. 



Epwell. 

 Depressed. 



Thermo- 

 meter. 



Remarks. 



2 

 3 



4 



/ # 

 19 O 

 19 2 

 19 3 



Degrees. 

 57'5 



57,5 

 57-5 



Light airs from SW. Inclinable to rain. 

 Ditto. Still more so. 

 Ditto, hut misty. Barometer tube broken. 



