[Vol. VILL. Part I1.—p. 502.] 
CALCULATION FOR FINDING THE 
81.2 Mean E. A. T. = 10/28” .12 
Chateau de Sainte, Pas de Calais. Morning Observations. Very Clear. 
841497 42343 49178 444 15 44-463 45 903. 46.168 47 15 OT - 
3100 320 2330 93 40 23.50 2% 0 410 220 24 SI 
— 6 Error. { Daily var. @’s decl. 17 55 = ot FREE 
; 5 19 15 ; 37 36 0513841 4.052805¢ 
23 040 se led 0 i 24 50634863 5.063486 
23 040 85224 8 59 49 $.1462789, 2.1287H07 
11 32 0 307 36-3 00 11 140 0 GEN 
+ 11 45.5 
lH 45 1148473 1153491 1158509 123527 128545 1213 564 1218 58 
©'s declin. first obser. 16 14 17 co-sine 9.9823202 @’s declin. last obser.16 14 22 5 Co-sine, ean 
Co-ar. co-sine, co-lat. 50 19 57 0.9149539 - - - - - - - - . 
0.2126337 0.2126371 
©’s declin, first obser. 16 14 17 Last observ. 16 14 22.5 
Co Latitude, 39 40 3 39 40 3 
@'s meridian alt. = 23 25 46 Nat. sine 397619 93 25 40.5 Nat. sine 397594 Differ. 25 
*s mer. alt. Ist obser. 23 25 46 Nat. sine 397619 397617 397614 397612 397609 397607 
pase Seale a ll 43 455 “7 203072 204496 205920 207343 208765 210187 
194547 193121 191694 190269 188844 nBeeu 
Prop. parts for seconds of alt. 45.5 9 = 216 225 233 243 251 259 
194331 192896 191461 190026 188593 187161 
Log. - = = = 9.288542 9.285323 9.282080 9.278813 9.275526 9.272215 
Co-ar. co-sine, co-lat, ©’s declination, 0.212634 212634 212654 212634 212635 212635 
Horary. - - - 9.501176 497957 494714 .491447 Ee 61 484850 
; 0975 H $ t 
TWAS — | i H } 
1454} H i H 
t ; H H 
556 | i 
3.7428 3 6586 3 6143 3 52993 4455 3 4 09 
852172 853014 85345.7 854301 8 55 59.1 8 5559.1 
8 41 49.7 42 34.3 4317.3 44 13 4446.3 45 30.3, 
10275 10271 10984 10288 10282 10 98.8 
Q7.1 
28.4 
28.8 
28,2 
28.8 
27.6 
274 
28.5 
28.9 
TIME WITHOUT EQUAL ALTITUDES. 
@ Tth Nov. 1517, Lat. 50°19 57” Long. 2’ in ‘Time west of Pans. Error of Inst. — 6’ 
48.293 49155 Ther. 103 9.9995 9.9995 
24-40° 2450 Bar. 74830 9.9931 9.9981 
Error, — 6 8D. - %8 2.4280. ‘77 2.3986 
28 172 38 218 
24 44 
12 22 24378 2.4080 
+1236 - 
re 2741  Refrac. 255.9 
12 343 6 87 Paral. 86 
12 25 59.9 12°29 1.8 965 4 Ref.- 247.3 - 
— 425 4 Par. + 4 75 
©’s semi-diameter, + 16 10°9 16 10.9 
4-11 45 5 + 12 03.6 
©’s declin. at noon, 16 16 37 16 16 37 
3) 7 36 “= 2 20 SOP = 2 14.5 
16 14 17 16 14 22.5 
897604 3897602 397599 397597 897594 
211609 213030 214451 216156 217575 
185995 184572 183148 181441 180019 
269 276 285 8 17 
185726 184296 182863 181433 180002 
9.268873 9.265522 9.262126 9.258716 9.955277 
212635 212636 212636 212636 212637 
481508 478158 474762 471352 467914 
} } } $ 471 
H H H H 761)443(5.8 
{ } ; H 3805 
; H 
H { H 625 
$ ; ‘ $ 
3 3161 3 23135 8 1462 3111 8 0158 
85643.9 85728.7 858138 358589 859442 
4616.3 47 1.3 47 45.3 48 29.5 4915.3 
10 27.6 10 27.4 10 28.5 10 29.6 10 28.9 
