Volume 1

A general dictionary of arts and sciences: or a complete system of literature ... Poetry ... and theology / by ... James Scott ... The mathematical branches by Mr. Charles Green ... Naval and marine affairs ... by Mr. William Falconer ... Botany and gardening, by Mr. James Meader ... And the other branches of literature, by a society of gentlemen.

Date:
1765-1766
Catalogue details

Licence: Public Domain Mark

Credit: A general dictionary of arts and sciences: or a complete system of literature ... Poetry ... and theology / by ... James Scott ... The mathematical branches by Mr. Charles Green ... Naval and marine affairs ... by Mr. William Falconer ... Botany and gardening, by Mr. James Meader ... And the other branches of literature, by a society of gentlemen. Source: Wellcome Collection.

    21/990
    on! Prob: 3. To find A, Rad. : : fin, fun’s elongat. from © ‘: M: A, Otherwife, without M. :: 20°: yi Ys For fe aberration in fright afcenfion. ~Prob: 1. °To find ©. Sin. ftar’s latit. : rad. :1-cotang. P ; tang. Z. Then, if the ftar (in refpe& of that pole of the equator, which is of the fame denomination as the {tar’s latitude) be ina fign 1. Afcending, and P be acute, Z added to its true place, gives ©. 2. Afcending, and P be obtufe, Z taken from its true place, eives ©. 3. Defcending, and P be acute, Z taken from the oppofite to its true place, gives ©. 4. Defcending, and P be obtufe, Z added to the oppofite to its true place, gives ©. Prob. 2. Vo find M. Cof, ftar's decl. x fin. Z: cof. Px rad.:3207 1M. Prob. 3. To find A. Rad : fin. fun’s elongat. from © 7: M: Al Otherwife, without M, Cofin. ftar’s declinat. x fin. Z :fin. fun’s elongat, from © X cofin, P’‘* 207%: A. . REMARKS. 1. That vp, wv, *%, 7, &> U, are figns afcend- ing in refpect of the north pole, and “defcending in “refpect “of the fouth pole of the equator. And 3, NL, mM, 2, m, f, are afcending in refpect of the fouth pole, and defcending in ‘telpect of the north pole of the equator. 2. ‘That if the fun’s place be in that femicircle of the ecliptic which precedes ©, A muft be taken from the ftar’s true longitude, latitude, declination, or right afcenfion, to hive the apparent ; but if he be in the femicircle following © , A mutt be added. 3. That the rules give the values of M and A always in feconds and decimals of a degree. From the preceding rules the following table is calculated, which will be found of the greatest fe to aftronorhers and navigators, 8 - | & y= hoy lame eo] Os eth an Ot baal 2 z “ >) as” 38/+-18,4, +20, 5|+'23,6|/+ 19,9: +22 636} 19,3] * 23,2]. 19,7 1453] 47,6] . 21,9] > 18,7 11,6) 15,3] 19,9) 13751 855] — 22,5] 1754) 15,7 552 9,5} 14,4] | 12,6 81 2:4)— r,4)-+ 2,8] 6,1] 10,9] 9,7 Biome 258) te, 1256 ad 6,6 5,2) — 1,0l+ 3,3|-+ 3.2 3,4 455) O,9|— 0,2 TH4) 9]. 9° 49 395 TAsT] ys Tit 8,7, 6,8 Ltosatt rs so),) tes 9,8 R8j} 26,3) U5g5hi) Rai 19,4}, 18,2] ~48,2] 15,0 20,0} 19,1] 20,5) 17,0 BAe Zo; 5b) S7,2)' 15565 19,8} 20,3} .23,2] 19,5 19.0}. 2008 23,6) 19.8 17,4] 19, 23,4) 19,7 19,4) 18,41 22,5) 19,2 13,1] 16,5]; 21,0] 1850) 10,3). 14,1]. 38,9) 16,2 72} -TLj4) 12) a,7 Q3Op <? Sah hug ay pasg FUOSS 49 955 8, 6 aL POT AAs Seehe aoe 6,3'+ 2,2/— 1,7/— 2,1 95] 5.8/4 2,3/+ 14 ashd igen Oat Fo48 Vale, OP atoeait LORI. Os x PF, thi TSO. 13,8) 2X52 ~ 18,9} 17,3] 16,9) 1359 19,3} 19,1] 19,6) 16,2 20,0] 20,4) 21,0] 18,0 21,0} 20,7). 22,9) ~ 39,3]... 19,71 20,71 23,31 19,6 3 3 rs | £5,6|—24,9|~19,9,-26,3|—14,1/10 Jan. 12,6] 23,4). 19,8 27,1 16,7/20 9,2} 21,3} 39,0] 27,1] 18,8/50 5,6] 18,4)' 17,6) 26,4] 20,4! 9 Feb. 9,3/— 1,0} 15,0} 15,7) 24,7) 21,3/19 : + 2,0) 1,1} 13,4) 22,4) 21,5) 1 Mar, 5,8] 6,9] 10,5) -19,3 ets 953) 26] 7,5] 15,6) 20,1/28 12,6}+ 1,8 4,1| ,1%,6}+- 18,4)/3% 15,5). 6,2|/— 057} 7,2) 16,2|10April 17,9] 10,3/-+ 2,6,— 2,7] 13,6)/20 19,8} 14,1! © §.9,-F 3,9} 10.5130 Sisal kBPWs1F 90 ‘5 7:3|F0 May, 21,7| 20,4) 11,8) 10,8 3)3)20 21,8| 22,6) 14,3) | 14,9;— 0,2)30 21,4] 24,4) 16,4) 18,5'+ 3,4) 9 June 20,3] 25,3] 18,0] 21,5 6,8) 19 18,6} 25,6) 19,2} 24,0) 10,1)29 16,5] 25,2] 19,8} 25,8] 13,1] 9 July 138} 24,1] 19,9) 26.9 silt 10,8] 22,3} 19,5} 27:2) 47,92 7,5| 19,9] 18,4) 26.9) 19, 47 3 Aug. . 3>9]> 16,9] -16,8} 25,8) 20,918 + 0,2} 13,4) 14,8) 23,8 21,4128 355 9,6] 12,3] - 21,3 21,4| 7 Sept Jak 5.44.4 9:5} 18,0 20,8117 : t0,5|+ 1,0] 6,4) °° 34,3] 19,527 13,71/—— 3,3/+ 3:0] 10,2] 17,7) 7 O&, 16,4) - 7,7|— 4) 5,6) 15,3,37 PS, AA TIF 3,8|-+ 0,9] 12,5, ‘om 20,4) 1555 732%|— 3,8 9,2 6 Nov. 21,4] 18,9) 10,3) - 8,3]. ©5,7)16 21,9) 21,7) 13,1]- 12,9]+ 2,0/26 2457) 2357), 15,6). 17,0;— 18 6 Dec, 20,8] 25,0} 17,6] 20,5 5,6116 19,1} 25,6] 18,9] 23.4] 9,2]26 18,11 25,51 19,41 24,51 -t0,9]32 I ABERRA-
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