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[[very crowded, difficult page to read, bleed-through, unaligned squeezed entries, linking lines, many interpretive guesses, researchers should check original document]] [[boxed date]] 1862 Aug [[?2?]] [[/boxed date]] [[encircled, center of page]] Concluded [[underlined]] Vide [[/underlined]] page preceeding this [[/encircled, center of page]] [[three columns]] [[first column]] Col 1 [[?]] Angle h5-m32-s4 [h11-m04-8] Sec 10.91514 Dec-d [at gr. alt.] 2°-50' N Tang. 8.69453 - - - - [[to "Sine 8.69400" in second column]] _____ ________ d. 22°-09S Tang. 19.60967 [[?22°-09s - questionable math]] A [diff. [[?name]] ^[[ [[?Moon symbol]] Dec [at last Alt] 21-29N ]] from ______ B. - - - - - - 40S. - - - [across to "Cosine 9.99997" in second column]] [[?sun symbol - 82°-28' Cosec. 10.00376 [ [ [ [ [Least Altitude 33°-35' Sec 10.07931 - - - [[across to "Cotang. 10.17785" in second column]] [Greatest Alt. 41 -32' ______ [[strikethrough]]?[[/strikethrough]] Sum - - - - 157-35 ______ 1/2 sum - - - 78-47 Cos. 9.28896 1/2 sum gr alt Rev 37-15 Sine 9.78197 _______ 2)19.15400 ________ 1/2 [[?]] - - 22-11 Sine 9.57700 [[?symbol]] - 44-22 N. [named like] bearing of the] Zenith] [[wavy line] [[/column one]] [[column two]] Col.2 - - - - - - - - Sine 8.69400 A [[?same ?off ?as H.]] Cosec 10.42362 - - - [[to "Cosine 9.96670" in third column]] - - - - - - - - Cosin 9.99997 - - - [[to "Cosec 11.93022" in third column]] ________ [[?C [?same ?off as B.]]Cosec 9.11759 ________ G. - - - - - - - Sine 9.84515 - - - - - - - Cotang. 10.17785 ________ [[?symbol]] 46°-31 N. Tang. 10.02300 ________ Dec [[Moon symbol]] 21°-29' N [at least Alt] K, 68°-00' N. - - - - - - [to "Sine 9.96717" in third column]] ______ [Preparation of above [[encircled B]] ] [on page predeeding this [[strikethrough]] encircled A [[/strikethrough]] ] [[/column two]] [[column three]] Col. 3 - - - - - Tang 10.91190 [[from "Sec 10.91515" in column one]] - - - - - Cosine 9.96670 [[ from "Cosec 10.42362" in column two]] - - - - Cosec 11.93422 [[from "Cosine 9.99997" in column two]] ________ F 0°-4' N Cotangent 12.81282 [[?24°]]-22'N. [P. less than 90° diff name from B. ______ 44°-26' N. - - - - - - - - - Sine 9.74288 [[from "Cotang 10.17785" in column two]] [[?symbol]] [less than 99°] Sec 10.16232 [ [[?symbol]] named as G] - - - - - - - - - - - 9.96717 ________ - - - - - - - - - Sine 9.87233 ________ Lat. 48°-11' N. [[/column three]] [[bracketed note in left margin]] The above [[encircled B]] worked by 4th method - "Bowditch." [[/bracketed note in left margin]] Latitude [[?deduced]] from Ob. of[[Mars symbol]] (Mars)} = 48°-11'-53" ^[[ [[encircled A]] ]] above at d20-h18-m54-00 } Latitude deduced from Obs of [[Mars symbol]] & } = 48°-11'-00" [[Moon symbol]] [[encircled B (Mars + Moon) = } d20-h20-m3- s32 = } (Note) When the latter obs. [[encircled B]] were made, ship about one mile S. of 1st position on of where 1st obn. was made. [Nearly calm & wind hard during the interval of Time bet. the [[encircled A]] & [[encircled B]] obs.] [[end page]] [[start page]] Saturday, Aug. 30th 1862 At Meridian it being thick, foggy weather no good observation could be had of the sun to determine Latitude. About 2 hours after Meridian, one set of obs of [[sun symbol]] taken - 4 hours after Meridian another set by wh. for me to obtain Lat. - Obs & working up as follows: [[two columns]] [[left column]] [[encircled A]] G. H's Chro hV-m43-s59 46°-52'-00" V- 44- 40 46 -42 -00 _________ __________ Mean = V -44 -20 = 46 -47 -00 ______________________ Add dif. Lat. - - - - - 07 -00 __________ 46°-54'-00" [[sun symbol]] S. D. - - + 15 -53 Px. - - - - - - - - - 07 __________ 47 -10 -00 Rsp. - - - - - - - - - 53 __________ 47 - 9 -07 Dif. - - - - - - - - - 3 -25 __________ [[sun symbol]] [[?Tr]]Alt. 47°- 5'-42" [[line]] [[encircled B]] 2d Set hVII-m43-s06 28°-44'-00" VII- 43- 38 28 -36 -00 ___________ __________ Mean = VII -43 -22 = 28 -40 -00 V -44 -20 ☉S.D. + 15 -53 ___________ Elapsed} I -59 -02 Px. . . + 7 Time } __________ 28 -56 -00 [[?Ref]] . . . . . 1 -43 __________ 28 -54 -17 Dif. . . . . . . 3 -25 __________ ☉ T. Alt. . . . 28 - 57 -52 [[-0-0-0 line to "28-50-52" in second column]] 9 -00 -55".9 . . . . . . . . 57 .5 [[dotted line from left margin note below]] _____________ [[?8°-54'-?58".4 = ?Cor. ?declination for 1st ?problem]] [[strikethrough]] ? ? ? [[/strikethrough]] [[struck out with double line]] 81-03-02 Polar Dist. for Time (2" Ref.) [[/struck out with double line]] (Over) [[calculation left margin]] [[?symbol]] h m s VII-43-?? ?-43-20 2) ?-27-42 ________ Mean [[?]] 6-43-51 [[might read: Mean of t. fm [[Moon symbol]] ]] Chro Fast 6-22 _______ 6-37-29 E [[??]]6.625 53".96 Dec [[?[per h]] 60)357.485-00 5'-57.5" [[dotted line up to "5-57.5" in left column]] [[/calculation left margin]] [[/right column]] [[this section starts even with the line in column one "[[encircled B]] 2d set"]] ☉ [[?true]] Alt [[?1]]set = 47°- 5'-42" [[dotted line from "47°- 5'-42"" in first column]] ☉ " " 2 " 28 -50 -52 [[-o-o-o- line from "28 -50 -52" in left column]] __________ 2)75 -56 -34 __________ 1/2 [[?su]] 37 -58 -17 __________ ☉ True Alt [[?1st]] set = ?7- 5-42 ☉ " " 2d " = 28-50-52 ________ 2)18-14-50 [[math doesn't look correct? Shouldn't sum be 21-45-10?]] 1/2 Dif Alt = [[boxed]] 9-07-25 [[boxed]] [[/right column]] [[end of page]]
Transcription Notes:
By far one of the hardest to read and hardest to transcribe pages in the journal, due to crowding, bleed-through ink, etc. Researchers should double check every entry for accuracy. In some cases I have transcribed and aligned for mathematical clarity and/or continuity rather than transcribing text literally which would confuse context if transcribed purely by SI rules. Re "Bowditch": https://en.wikipedia.org/wiki/Bowditch%27s_American_Practical_Navigator. An encyclopedia of navigation. It serves as a valuable handbook on oceanography and meteorology, and contains useful tables and a maritime glossary.