BO 



MEASUREMENT OF AN ARC 



TABLE containing the particulars of the Measurement] 



. 





-~ 





■ "' . ■ ' '. 













s » 



"fc "S 



S- in 



» to 



Perpendicular. 



Commencement j 



o5 



)4 





j No. of tl 

 jHypothem: 



CD 



O OJ-O 



» d 'S 

 a> O E» 



&3 W 



° ° 2 



a g-5 

 "5 o o 

 Q <~ s^ 







from the last. 



3 



* s 



(I) 

 H 



REMARKS. 



Ascents. 



Descents. 



Above. 



Below. 



1 O l it 



FEET. 



FEET. 



FEET. 



INCHES. 



INCHES. 







1 



500 



11,54 



.00300 





1.73 



30.7 





97.88 



Commenced on the 28th 



2 



600 



11 30 



.00336 



2.01 





3.6 





80.03 



February, 1809. 



3 



400 



30 



.01524 



3.49 





8.0 





96.16 





4 



100 



13 18 



.00075 





0.39 





12.5 



106.2 





5 



100 



22 15 



.00210 



0.65 





5.8 





112.6 





6 



600 



27 



.01848 



4.71 





16.0 





76.67 





i 7 



600 



Level 







' 





2.8 



100.13 





8 



500 



13 55 



.00405 



2.02 





6.8 





100.8 





9 



500 



21 22 



.00970 



3.11 





5. 





91.6 





10 



500 7 15 



.00110 





1.05 







94.52 





11 



400 



32 36 



.01800 



3.79 





21. 





87.6 





12 



700 



13 57 



.00560 



2.84 







2.1 



97.8 





13 



700 5 21 



.00084 



1.09 









85.1 





14 



700 5 51 



.00098 



1.19 







3.3 



109.2 





15 



700 



16 37 



.00812 



3.38 







3. 



82.3 





16 



600 



18 3 



.00828 



3.15 







7.5 



106.4 





17 



700 



6 42 



.00133 



1.36 







2.0 



96.3 





18 



600 



12 48 



.00420 



2.24 







8.8 



83.3 





IS 



500 



19 3 



.00770 



2.77 







5.9 



99.2 





20 



700 



Level 











6.5 



91.4 





21 



400 



2 30 



.00012 





0.29 







78.8 





22 

 23 



700 



2 30 



.00021 





0.51 



3.8 





96.5 



■ 

 ■ 



600 



12 21 



.00390 



2.16 





6.2 





105.5 





24 



700 



13 39 



.00553 



2.78 







l.l 



81. 





25 



800 



2 48 



.00032 



0.65 







9.2 



86.1 





26 



700 



15 48 



.00735 



3.22 





4.2 





108.4 





27 



600 



3 18 



.00030 



0.58 







2. 



83.7 





28 



600 



26 57 



.01842 



4.7 





4.0 





87.3 





29 



900 



15 30 



.00913 



4.06 







2.5 



109.2 





30 



500 



22 12 



.01045 



3.23 







0.5 



84.3 





31 



700 



9 24 



.00259 



1.91 







7.2 



94. 





32 



700 



22 7 



.01449 



4.50 







5.6 



100.8 





33 



500 



20 



.00845 



2.91 









76.0 





1 34 



700 



5 39 



.00098 





1.15 



' 



8.5 



81.9 





1 35 



600 



11 39 



.00345 



2.03 



• 



2.3 





97.9 





1 36 



700 



12 48 



.00490 



2.61 



■ 





0.6 



92.1 





| 37 



700 



21 4 



.01316 



4.29 





4.5 





79.9 



. 



38 



900 



33 30 



.00697 



3.53 







17.7 



100.5 



■ ■ 



39 



800 



34 42 



.04072 



8.08 





14.8 





87.0 





40 



700 



27 48 



.02289 



5.66 





2.5 





85.8 



i 



41 



800 



5 42 



.00112 



1.33 







8.6 



96.9 





I 42 



1000 



5 30 



.00130 



1.60 







2.8 



81.8 





1 43 



700 17 30 



.00906 



3.5& 





10.5 





93.9 





44 



1200 



28 ^1 



.04080 



9.90 





3.25 





88.9 





j 45 



1100 



10 



.00462 



3.20 





0.3 



■ 



89.7 





1 46 



900 



11 45 



.00526 



3.08 







5.35 



98. 





I 47 



600 13 39 



.00474 



2.38 







2.2 



104.5 



Completed on the 18th 



1 Descent from the tc 



rmination of the Ba 



se to the 

 1 5-12 



ground. 



j 153.25 



32.0 





March, 1809. 



1 



|3050C 





| .35406 



119.75 



160.25 



92.9 





m perpendicular, height 114.05 Feet, 



