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Show • "'1' ~t I ~ G1 '-'t Pi\H: 'n C> lll\ 0 (' \I'or T. \t{g, 7.'?on F l~ lo~ r· 1 \ n °.. , 'L lJl·; (.,.UJ. ·' Of .hiK ' JCO. All' > V J~ TilE LEVI:J. or Ddcrw I.' a I i rn£ <!( lo~t_I;ill t/(', Jlugus/ 1, 1 S· l!.!-u /1 ilurle 'f//,e wn. IHol:u;..u ~>lrtlr:~ .. Dotthlo :dt!lul,! of tlw 'l'iiJHl of c!t:onom. t. r. lhrah~t ul Jt\ldP of th(• '1'iuw of c:mmomctcr. iowl'l" lun11 of the ti tlllo [)('!_f. 11.' ,, . Mr. h. -1 l 01 t O ~ <11 15 :m u 411 ;I() 15 ~ 4 ! 4 (5 :w 9 I\ f) 00 ·1,1 u Mean timt'. - ------- 71. 1 acr. l !J ltiWtol l llldl oJ lhll l'UII. II 1/ll '1, .~ (c. I )f'':"-." . It/Ill. Joif'C h. min. ~tr. :!() 1 (j fl I):) ::l :J 00 ~ :.l ~ /ij II .!(J <II (i 4 ) a:J 10 !) 10 20.1 3/ ~.hoO 4 o) 4~ 10 !) 4U 4h 0 :!ij ) 2 :c 4 ;, fll I;, !) 4 t t 900 ~ ~ ot.o 4 () (;;l tl .) u 11 4!.3 n~:su I.. I' 01<' <;AI.GULATIO~. Advance. I. .. ongitutlo. mzn. ~oec. 2;) 1 !) - -- ·---- Dnring- my ab~encc from tl~s pl;H'P, and bctWl'Cll the 12th amllGth, tho chrouumetcr stop pcd. G33 [ 174. ] ENCAMPMI:;NT AT MOUNTAIN T.AJ<E, ·1,~00 FEET ADOVE THe LgVl~L OJ< 'l'JU.: GULl" OF' MEXfVO. Oeterminat ion of longituflr>, .llugusL 17, 1 812-altiludc of Ll1e su~t 0 0 IJSJ•: HVATlON~. J' I flST 81·: Jl IKIS. Double nltiturle of the I Tim ~f <'hronomctf·r. sun'fl lo w~r liml ·. Do,,hJe altitud<~ of th Tim , of cbmtwmt•t<:r All II' ~"' lowf'r limb. Otg. mm. ,rt'c h. ffll11. S t'ro Oq;. min . Rl'r . ft. min . 40 02 15 5 64 18.0 41 16 50 5 59 40 20 00 5 65 :JI'.:J 4~ 01 ~0 G 00 <W 35 Jf) 6 66 II. () '12 18 05 6 00 ~0 48 35 5 56 5'1.0 1:t :Js 20 G 01 41 17 20 & 68 J 00!) 42 50 15 6 02 Tlwnuome(.(!r 61° , fnd(''<: l ' rrl)r - :~2 140( . RF. U L T 0 l<' C A f.( ' lf LA T I 0 N. Mco.n ti.roo Rr-turd. Longitude. .llugust, 17, IS t2 -ollitudc OJr tile. un 'in tlte meridian. ------ Double altitudr of t.ho snn'u lower limb. Dt!!. fllttl 120 38 .. 41 sec 15 0 rl.'F, n V ATIO rg, J>eg 60 1ftl'l / ~4 .~u:. 22 ---.,...~- ------.---- o'tl'( 3 t. r. 12 00 5 7 07 6:3.0 2G.U |