No. 8.] PENDULUM OBSERVATIONS. 21 
q| 4 = | 
5/8 81 op. ee Or S)| ere at Observed Dura- 
B= 54 5 The piAColn = 5 | Fine ge Corn tion of Calculation of Period 
=| || Sas cidence om | cidence oer 
ei a2 3s 3 Coincidences. 
Z, Cz | 
34 | Bar. | 7637 = 7643 Bar. = 7643 
t 11°51 11:58 G— A eet ed 
a 64 — 64 52 — 52 a= 563 
hms hm s m s 
= 648,646 
1 6 42 457 31 715 44 | 30c=32 187 nee — 198-999 
2 43 510 32 16 99 18°9 
3 44. BAS 33 17 14:0 19:2 loge = 1°8105417 
4 46 00 34 18 19:2 192 | log (2c—1) = 2°1081996 
5 47 40 35 19 23:4 19°4 9°7023421 
6 48 89 36 20 28'6 19°7 | log1SHaw = * 20469 
7 49 13:0 37 917 39:5 195 Sra 
8 50 182 | 38 2 37-9 19-7 ee Boe 
9 51 99°5 39 93 49-1 19°6 S = 075062779 
10 52 97-4 WO WW. 47:3 199 A= 6° 
30 c= 32 19:38) t=— 6685 
a 6:0 — 6:0 49 — 49 o=— 52965 
t | 1152 11°61 5, = 05061578 
33 | Bar. | 7639 = 764-4 Bar. = 7645 
t 11°71 11°74 t= 11°73 = 15° 44 
a 4.8 — 48 37—37 a= 405 
hm s hms m s m 
= 688.9537 
1| 751466 | 31 | 8 26159 | 30c—34993| 9, 4 4966074 
2 52 554 32 97) 93"7 98:3 
3 54 5.0 33 8 33°4 28'4 log ¢ = 1:8385576 
4 55 13:1 34 29 41°8 28'7 | log (2c—1) = 2'1364269 
5 56: 22'9 39 30 51°6 28°7 97021307 
6 57 307 36 31 595 288 | log1SHaw.= 20502 
7 58 408 37 33 (9:2 284. ara 
8 59485 | 38 34 170 985 Aiea Pith 
9 0 584 39 35 270 28°6 S = 0:50603)4 
10 2 64 40 36 348 98'4 c= — 32 
30 c= 34 28°61 t=— 6815 
a 4.3 — 43 34 — 34 é=—=— 5261 
t 11°71 11°76 ari 
Bar. 7641 — 764.6 Ses ae 
