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Show [ 174 J 398 ENCAMPMENT AT 'rHF. MOUTH l" in~AH RIVETt Deterrnination nJ /ongitudt', SrJJic'lniJrr ~3, l 4 ~>-alti!udes of .!hcturus. o n s 1~ n v A T 1 o N .. ;. DouJ,Jc nltitndr~ of .i\rdmm:. Ti II\~ of chronometer. lJrg. mill. Sf' C. 11. Jmn. .~rc. :lH 21 f>O !) !Hi L!i.O :31 1H :.!0 r;~, tl7.0 :n 2l 110 f>H 150 0 :w f>G :.!0 10 00 O!i.f) :~o :31 !)() () 1 0!). 0 :w 00 [}(I 02 :1u.o -+ I min. 2!> scr. Jtlo:SUL'I' C>l<' C.:ALOULA'I'lON. • -- Mean time. J ,ongit udc. /,. 1Nill. srr.. !t. 111111. ,\(('. Drg. nun. sec. H ·18 0·1 l L L !1~ 2L 20 l~nu rsion of Jupiter's Jirst satellile. OhRt rY<'tl t tllH'. h. min. Me. !J -37 4 0 1\1 ean time. !t. una. src. S :.!{i I 0 \f1':1ll long-itwh- 112° 1 O' 30''. Longitudo. ]Jrg. 11 ~ nun. sec. 1 '/ 40 I 399 [ 174 J EN 'AMPMENT ON WEBER'. · FO K. IJelermination of longitude, Sept. 7, L lJ-altitudes of the sun. 0 B 'EH V A'l'lON._. FITtS'f Sl: It ll:S. SLCO ll S l. lt!J; "'. Double nllitu<lcs of tho Time of ehrouomelt•r. sun's low!'r lilllh. Dolll,Jt• alti!u<ks of the I 'J'IInc of ehronomcter. suu\; lnw1'r l11nb. Drg. min. sec. 39 27 ~() 39 10 00 39 5:J 15 40 09 Ot> 40 19 00 Mean timt', h. r11in. 7 25 srr. •.>. ..., -----·-- h. nun. ~·rr. lJt!{. nun. 'll 2."). () '10 :30 .n !i!J. ~ 40 4 I) :$2 ;J I. !i 40 .'>I ;j :J Hi.O 111 O:J 3:3 1l lt, 2 41 l :1 fnd<'x nror = + 1 •ui11. 10 ~cc. HESUI.T OF <.:ALCUI-A'l'IO~· • \dv·lllcc. h. /J/,1//. l OH Sl'('.. 10 :.!0 ·10 ~!) !)() ft. nun. :!1 :H :35 a:> :16 Lou~itnclc. Dt~!:. 112 1111 n. ~·cr., Ou ·13 St'~. 13. 1 43.1) 12.4. ·11.3 11.5 Detcnninat ion of latitude. ,",'t•jd. 7, J " 13--m cr it!ia n a I I ilu rl cs of tlu sun. OBSEHVATION' •• Douhlc nltitudco of thl' sun's IO\\' t'r li~nh. 'J'i111t' n!' chrouomclt'r. J)r,r...r, . lr/1/1. 109 (HJ 109 00 109 09 109 09 109 no 109 09 109 0 109 08 109 07 109 07 True altitude. ---- Dr«. min. sec. 54 5l 0 l sr:c. 10 :Jf) !10 5!) :30 ',.'..",) 5G 20 !)() 00 Indc•x c• ror = + 1 min. :l2 :-ol' •• HESUL'l' OF C'ALCULATIOr\. A ppar<'n t time of tranRil. ;,, mt:n. l 06 . ec. 11 ''· Jt/1 J7. we. I 0:.! :, I () ;) -,) .).. 05 . i:3 0() i)(j 0-l ();} 0.-l ltl 09 2~ 10 II I I 02 ll !)() Lntitmlc. min. Sl't:. 15 50 •• ' |