94, REPORT—1896. 
observations were in close agreement, and it hardly seems necessary 
to record them, as the value of (3 is itself a test of the accuracy of the 
observations. 
Stonyhurst Observatory. 
Comparison of Magnetometer No. 70 with the Instrument in use in the 
Stonyhurst Observatory. Declination. 
Date | Time | 7S | Dectination | a" s—c-2,s'—-C-2 ar ie-4 
H. M. te) / | , Uy t , 
August 17|1646| 8 | 18364) | 494 | — 47-0 Wht: 15.8 
5 17,351) 2 342} | 494 | 44-8 I te 
August 18) 930) 311] | 468 | 443 tae 
: 953| § 35:1 2610 ighsts—= 47-1 | 
August19 | 930) & 350] | 481 | 469 ae 
10 0| 8 ST1f | 498° | — 47-3 
fs 17 50| = 343 47-8 | 465 re 
6] 6 34:8 Mee | es 46:6 
August 20/10 0) = 312) | 469 | 443 Lait 
3 1029) 8 347 480 esheyo-© 46-7 2 
August 21| 9 33| § 34-2 age | 2 47-0 TA i 
: 956| = 341f 481 | 46:0 
‘i 1548) = 358) 510 | 448 Wim ag 
: Wit | 8 37-4 nO. | = 466. 
August 22} 951) S$ 33-9 re ae 46°8 ee 
i TO ree 34-2 484 | 458 
Mean é — —_ —_ = — _— —1"5 | 
Comparison of Magnetometer No. 70 with the Instrument in use in 
the Stonyhurst Observatory. Horizontal Force. 
Date Time are pid / H | Curve | pion >/-—C=Z,| S’/—C=Z =-S = a 
| Observation / | 
Aug. 16 | Fr a0 SU} og] Oume2 | 000276) | 0:00277 | 016905 
s = / [* 278) Uy 
pa | 8 al | oars | 284 | | «00289 etesee es 
ee | Se, Mota) beg 
Ang, 37 io | 8 v1 | 017193 | 0900287 LD 
a 12292 | SV) | o-17I198 - 0:00293 | 0-16905 i 
ae i 20 | : ¥ | 017162 270} | O-DosG8 | 016894) | cno10 
: 12 22 / x x! | 017190 B79) | 000283 | O-god4 ) 
Ang: 20 | loss | § vat ovat Paty 0-00271 | 016900 ) entes 
4 1218 | = V) | 017201 279) | 000298 — o-16908 | ) 
Aug. 21 10 23 3 4 | 017186 25 | 0-00263 | o-16993 | ) a: 
; L 
> wid | § ¥} O1nTT 277 0700271 / 016906 } 
” 1438 | 3 vi 017206 | 295) 100800 | 016906 | it pentoee 
‘3 1628 | 8 BI} oia2 | 300) 0-00297 016915 } 
a | 204 
Mean = = = == = == — —0:00005 | 
