Prof. E. Loomis on the Aurora of 1859. 81 
Hour. | Unifilar. | Bifilar. Hour. | Unifilar. | Bifilar. Hour. | Unifilar. | Bifilar. 
hm hom : 
20 55 | 127°0 84:0 September 4th, 5 10] 1425 158°0 
h 5 
m 
a1 45 | 131-0 109'0 0 40} 1040 
23 55 | 1107 140°4 ae i, 98-o 
* 
ans 113°8 134 16 0} 140°2 134°2 
20 790 | 2330 | 20 1263. | 1590 
: o | 1015 a5 23504 3115°0 136:0 
From the preceding observations we see that the range of the 
magnetometers for each day was as follows: 
DHitiar magnetometer, 
ad d 
Aug. 28 ei 208 to Ig = 90+ ae A a7) From 106° Z to 420 ‘==313-3=031 
Aug. 29 90“ 990"5a 136'S== 5 00:5 "32 aI: a==254: j= 025 
Sept. 2 “«. 0. 242 ==942 =107. 44 abl or add «Bo 5=571° 5= 057 
Sept. 3 “ 44 158 =114 = 49 58 "85 OE aG5 assy eS"Oa7 
| Sept. 4 * 99. 180) e2102 = 44°16 Son ga BS ash eeors 
It should be remarked that in the preceding table, 0 indicates 
that the magnets passed beyond the range of their scales; so 
oT we can only conclude that on Sept. Ist and 2nd Bird range 
of the magnets certainly exceeded the values here give 
3. Observations at Catherinenburg, Russia (lat. 56° Lae 3 aHene 60° 
34’ E.), communicated by Prof. A. T. Kup 
The following observations are arranged in a same manner 
as those from St, Petersburg. The value of one division of the 
lar scale is 33’"4. The value of one division of the bifilar 
Scale is 0: 0001 of the total intensity. 
Bont | Unifilar, | Biflar. | Hour. | Unifilar. | Bifilar, | Hour. | Unifilar. | Bifilar. 
at a | 
September 1st. PY off scale | off scale} 8 536°5 300°5 
. 23 | off scale! 180°0 10 481'0 295°7 
© | 496-0 3085 ‘ II 5190 297°0 
2 | 490-0 3116 September 2nd. 14 512'0 283'0 
6 | 5075 | 3190 | 0 | 4340 | 2380 | 20 | 53g | 285-4 
12 | S103 | 3at-o 3:4 58g 281-2 | 23 | 5280 | agr8 
18 | 5d:9 390°4 6 427°0 “0 i 
I | 580-0 201°0 1 §20°0 412'0 
4. Observations at Barnaul, Russia (lat. 53° ony _ 83° 27’ E.), 
_ communicated by Prof. A. T. Kup 
at value of one division of the unifilar — is 82’"8. One 
Avision of the bifilar scale =0°0001 of the total intensity. 
_ SECOND SERIES, Vol. XXX, No, 88—JULY, 1960. 
il 
