ASTRONOMICAL AND GEODETIC OBSERVATIONS. 9 



T = + 23°.5,B = 29'".50 at 68° Index j+g^' ^o" Z30' 3o" } Correction + 1' 3" 



r = _4'02".6 r, = — 3'59".3 rt,= + 8".S 



T Z ^ t E aT 



10'' 10"33.«2 I t60 15' 33" | +4° 43' 48" I —39° 08' 12" | — S"" ll.'l \ —Q" 50'" 23/t 



10 16 20.7 I 16 04 22 | +4 43 42 | — 3t 41 00 | —3 17.8 | —0 50 22.5 



These observations were no doubt affected by the strong wind, the residt will 

 therefore not be used. 



Observations for time, September 10. 



Double altitudes of the sun, with reflecting circle. 



T 1 (+32' 40" —30' 40") p, ,. , 1, .w 

 Index 1^32 40 —30 20 J Correction + 1' 5 



)cket chronometer 



3" 38"' 



20= 



39 



00 



39 



36 



3 40 



36 



41 



12 



41 



48 



2© 

 ° 55' I 



25 



25 51 



25' 49 



26 48 I 

 26 45 

 26 4 



M 



Pocket chronometer 



3" 



42» 



56' 





43 



33 





44 



14 



3 



45 



07 





45 



40 





46 



22 



20 



26° 



-'{r 



26 



^^ {fo 



26 



^Hti 





20 



25 



^^ ill 



25 



22 i^^ 



^■^ 150 



25 



19 I^O 

 ^^ 100 



\ Correction +57" 



T = + 270.5, B = 29'".50 at 64° Index | + J^' ^^'J' — |J' JJ' 



hence: r = — 4' 12". 2 r, = — i'l5"A rt,= + 8".3 



T Z i t E aT 



3" 40" 0513 I 76° 54' 08" I +4° 38' 34" r+4.3o 13' 32" I —3'" 22^4 1—0'' 50"" 33^6 



3 44 38.6 I 77 04 09 | +4 38 30 |+44 22 42 | —3 22.4 1-0 50 30.2 



Mean . . . _0 50 31.9 



Observations for latitude, September 9th. Reflecting circle. 



Circammeridian altitudes of the sun. 



T ■, (+32' 10" —31' 20") (+32' 10" —31' 20") ^ ,. , oi„ ^ 

 Index I _^ 32 20 -31 20 } { + 32 30 -31 00 } Correction + 31".5 



(Applies to readings taken before 0'' 47"°.) 



Pocket chronometer 





20 



Pocket chronometer 





20 



0" 42° 



32= 



33° 



5' 1^0" 

 ^ 140 



0" 



52-" 23» 



330 



5/ (50 

 ^ 140 



43 



19 



33 



r |40 

 ^ 130 





53 05 



33 



5 JSO 

 ^ 150 



44 



35 



33 



7 \^^ 

 ^ 100 



20 





52 48 



33 



5 {40 

 ^ 130 



20 



45 



34 



34 



'"{IS 







55 17 



34 



8 550 

 ^ ISO 



46 



45 



34 



'«& 





55 59 



34 



^ 130 



48 



28 



34 



■»{;2 





56 38 



34 



^ 120 



April, 1865. 





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