80 
Prof. E. Loomis on the Aurora of 1859. 
2. Observations at St. Petersburg, Russia, (lat. 59° 56’), communi 
cated by Prof. A. 'T. KUPFFER, Director of the Central Physical 
servator 
From Aug. 28th to Sept. 4th, 1859, the wg tinea of the 
magnetic instruments at St. etersburg Ww 
ery remarkable 
The 
ave no 
followin oe exhibits the most remarkable deflections of the 
magnetome 
The the ‘pole of the unifilar magnetometer moves towards 
the east, when the numbers of ithe scale increase. 
one division of the scale is 26’ 
When the numbers on the dine of the bifilar magnetometer 
increase, the magnetic intensity increas 
vision of the scale is 0-0001 0 
ases. 
the total intensit 
The value of 
The value of one di- 
y: 
n these observations the day is supposed to begin at noon. 
Hour. | Unifilar, | Bifilar. Hour. | Unifilar, | Bifilar. || Hour. . Unifilar. Bifilar. 
hm, 
: ae — 20 my 15t'5 | 4190 || 8 25 115°0 tes 
20 4105 | 419° 10 35} © 95°3 ; 
, ce) pie | oe) a1 01 530°0 ive Romer | La ‘ Paes 
a 143 | 192"7 | an 10 | 6o1-5 | 4190 | 12 75 63-0 102 
3 S| so | ibe | 2198 | Sore | abo | aa 35 | dr lata 
| 1 40 go 12.0 || 12 50) 160 7°" 
16 9 | 1673 | 4200 | a1 45 omseale| 78 | 13 35 | 156-0 | offscae 
vid 0} 1920 | 4 oo || 2t 599} 940 oo | 14 45 1162 78-0 
23 05 | jos0.) se : gy Igo | 1515 | 1224 pe 
| a7 20°0 | 1770 || 16 20; 1130 | 100°0 
- vs | 1650 | ao" 92 30 85-0 os 75 | g80 | 1042 
O{ 1070 | 1275 | 99 50} 1939 ‘5 || 18 35 | 160-0 | 1095 
August 29th. 23.15 100 | 1900 || 20 20 | 1470 | 1290 
° 1355 209°0 23 30 | 1280 | 1000 | 20 55 | 127-0 | 123°0 
o 45 | 1030 168-0 23 45 59° 86-0 a1 45 | 1r50°3 oe 
SS HeES | Sas | Septeniter and 1°09, 8 AOR fata 
; : +1 io . 
4‘o| 1323 | feo | 038) “Gro | i500 | September dnt 
; - 220°5 | 257-5 ° Fé tke 65-0 0 15) 1260 neal’ 
oO | 140°0 195°0 I Lie) 1780 O.50,) ALT: 127° 
610) 185 ti 220; 186-0 | 393-0 155 85. 247'°0 
7 20! 100°0 98-0 a5 82-0 | 555-0 #55 75:5 | 210°0 
7 35 100° : 40 |off scale} 3045 | 415} 500 | 2370 
8 o| 1500 | 138-0 20 4°0 “O 4 55 45-0 | 2290 
8 45! 1290 | 1333 3 4o 135 | 5192 6 45 | t10°0 | 2790 
a o| 153- 124-0 4 0} 1470 | 292°5 8 o| 1440 | 1420 
23 0| 1374 | 125-0 4 45 ib =: 8 fo} 44:0 Pe 
O |. 3a2 t Oo} 1010 2 
a 10; 41 501-0 ie 158-0 | 1540 
oR Pp Ora) 3965 50 | 1045 | 2775 | 13 40] 72:0 | offseale 
2.0 955 183 0 6 45 100 172°2 14 20 65-0 355: 
2 ©} 1508 | 1679 | 8 0} 2345 | 4200 | 16 20] 157-0 | 1352 
o| 1200 | 1590 8 5] 2420 | 303-4 | 18 151 150 140°0 
