214 
NATURE 

very brilliant ; 24, visible from shortly before 9° P.M.; the 
finest display took place 11" P.M.; 25, traces visible during 
evening in S.S.E.; 30, traces visible during evening, S.E. 
October 21.—Visib!e during the evening, at 10" 30™ P.M., 
some fine streamers 30° and 40° high ; 25, visible at times 
during the evening, though completely overcast, as a 
luminous sheet, extending from S.W. to S.E.; 26, shortly 
after midnight a beautiful display, though cloudy. 
November 9.—Visible shortly after midnight until early 
morning, again during the wholeevening; fine red streamers 
visible through bright moonlight ; 15, auroral light visible 
during the evening, but no streamers ; 17, visible at 9° 
30" p.M., for a short time; 18, visible all through the 
evening; 19, visible all through the evening; at 9" 20™ P.M. 
very fine streamers ; 20,visiblefrom 11" P M. ; at 10 minutes 
past midnight, a fine display, with streamers extending 
from S.E. to S.W. At 4" A.M. on the 21st the whole ex- 
tent of the southern sky, from the horizon upwards, was 
illuminated by a reddish light, terminating in something 
resembling a corona, but no streamers at all were visible ; 
a thunderstorm occurred towards daylight, and the whole 
appearance vanished instantaneously at 4" 40" A.M, when 
a terrific thunderclap occurred ; 23, visible between 11” P.M. | 
and midnight ; 24, traces visible all through the evening ; 
25, traces visible all through the evening ; 29, visible from 
8® 30" to ro" P.M., but not brilliant. 
December 10—Faint streamers visible all through the 
evening ; 16, visible all through the evening, at 10" P.M. 
very fine streamers, and at intervals, up to 2" A.M. on the 
17th, a very fine display ; 17, visible during the evening, 
some fine streamers at 9" P.M. 
1871, January 3.—Visible during the evening ; 13, visible 
after 11" P.M, no streamers, but strong reddish light in 
S.S.W.; 15, at midnight, faintly visible ; 20, visible during 
evening, but only faint; 21, visible during evening, but 
only faint. 
February 12, visible for a short time at 9" P.M. 
List of dates when great disturbances in the magnetic 
elements took place, of the same nature as during 
auroral displays, but when no auroras were visible, 
or at least observed : 
1870: January 3, 4; February 10, 11; March 20, 
21; April 22, 23, 28; May 16; June 13, 14, 16, 17; 
22, 2 

July 5,28 ; August 3, 7, 19, 20, 21, 23 ; September 4, 5, 6, | 
7, 8, 16, 18, 26, 27 ; October 1, 15, 24; November Io, 22, 
27: December 5, 6, 7; 9, 11, 15, 22, 23,25, 27. 1871: 
January 5> 6, 10, 27, 28, 39; February 4, 5, 9, 13, 14, 15. 
We add to the above-mentioned aurorz australes and 
magnetical disturbances observed in Melbourne the fol- 
lowing ones observed in our own hemisphere : 
1870, January.—To the aurora on January 8, at Mel- 
bourne, corresponds the aurora borealis on 8th at Oxford, 
Liverpool, Cockermouth, and North Shields. To the 
magnetic disturbances on January 3 and 4 correspond the 
disturbances observed on the same days at Rome; on 
January 3 aurore boreales were observed in Piedmont 
and in France ; also in England at Guernsey, Worthing, 
Royston, Norwich, Boston, Eccles,and Culloden. Aurora 
borealis visible on the 4th in England at Wisbech. 
February.—To the aurora australis visible on February 
1, from 8 to 10", at Melbourne, correspond the aurora bore- 
alis seen at many places of the Europe on the same day, at 
Miinster, Munich, Ruhrort, Nevtomysl, Peckeloh, Lennep, 
at Upsala (5" 50™ to 13"), also at Cceslin, Petersburg, 
KG6nigsberg, Paris, London, Calais, Cracow, Stockholm, 
Rome on the 22nd and the aurora borealis in England at 
Little Wratting, Stonyhurst, and York. 
April—To the aurora australis on April 5, at Mel-_ 
[Huby 13, 1871 
on the 2Ist correspond the magnetic disturbances at 
bourne, correspond the aurora australis observed at 
many places of Europe on the same day, at Miinster, 
Peckeloh, Lennep, Bonn, Linzig, Diilken, Brunswick, 
Niederorschel, Stettin, Kurnik, Munich, Feldkirch, Wol- 
gast, Berlin, France and Italy, Paris, Austria, Athens, 
at Upsala, Petersburg, Riga, Pulbus, and Stockholm. 
To the magnetic disturbance on April 23 correspond — 
the magnetic disturbances at Rome, and the aurora 
borealis at Papenburg on the same day. 
May.—To the aurora australis on the 20th at Melbourne 
corresponds the very fine aurora borealis at Minster, 
which also was seen on the same day at Mannheim, Paris, 
and London, and the great magnetic disturbances visible 
in Rome and Munich. 
June.—To the magnetic disturbances in Melbourne on 
the 13,14, 16,17 correspond the magnetic disturbances ~ 
at Rome onthe samedays. (Bulletino Meteorologico dell’ 
Osservatorio del Collegio Romano, No. 7, vol x.) 
July.—To the magnetic disturbances on July 8 and 28 
at Melbourne correspond the disturbances at Rome on the 
same days. 
August.—To the aurora australis on the 22nd at Mel- 
Volpeglino near Tortona in Italy. To the magnetic disturb- 
ances in Melbourne on the 3, 7, 19, 20, 21, 23 correspond 
the contemporary disturbances of the magnetic instruments 
at Rome. With the magnetic disturbances on the 7th 
the aurora borealis at Upsala coincides. With the dis- 
turbance on the 19th the aurora borealis at Miinster and 
at Carthaus near Diilmen. With the disturbances on the 
2oth the aurora borealis at Minster, Groeningen, Peck- 
eloh, Oesel, Leipzig, and Upsala. To the magnetic dis- 
| turbance on the 23rd corresponds the aurora borealis at 
Glasgow. 
September.—To the aurora on the 25th in Melbourne 
| corresponds the aurora borealis at Carthaus, Danzig, 
Peckeloh, Weisenheim, also at Arnsburg, Oesel in 
Schleswig, Lichtenberg, Hamburg, Upsala. To the 
aurora australis on the 26th at Melbourne corresponds 
the aurora borealis at Lichtenberg, Weisenheim, Upsala, 
Glasgow. To the aurora on the 3oth at Melbourne cor- 
responds the aurora borealis on the same day at Upsala 
and Lichtenberg. To the aurora australis on the 2Ist at 
Melbourne correspond the contemporary aurora borealis 
at Upsala, Schleswig, Arnsburg, Lichtenberg, Hamburg, 
Norburg, Alsen, and the magnetic disturbance at Rome. 
To the aurora on the 24th at Melbourne corresponds 
the contemporary aurora borealis at Carthaus near Dil- 
men, Niederorschel, Groeningen, Danzig, Wolgast, Peck- 
eloh, Weisenheim, Norburg, Alsen, Eger, Prague, Oder- 
berg by the Inn, Kremsmiinster, Moncalieri, Vienna, 
Stockholm, Hawkhurst, London. On the same day great 
disturbances of the magnetic instruments were observed 
| at Rome and at Kremsminster. 
October.—To the aurora australis on the 21st at Mel- 
_ bourne corresponds the aurora borealis on the same day 
and in England at Eastbourne, Royston, Little Wrat- | 
ting, Norwich, Wisbech, Boston, North Shields, and 
Culloden. To the magnetic disturbances on 11th at 
Melbourne correspond the aurora borealis observed on the 
same day at Upsala, and in England at Taunton, Wilton, 
Streatley, Cardington, York, Hawsker, North Shields, 
March.—To the magnetic disturbances at Melbourne 
in England, and on the former day in Westphalia and 
England. To the aurora australis on the 25th at Mel- 
bourne corresponds the brilliant aurora borealis which was 
seen at many places in Germany, England, Russia, Sweden, 
Italy,* Greece, and Turkey on the same day. To the 
aurora on the 26th at Melbourne corresponds the aurora 
borealis on the same day in Hamburg, Lichtenberg, Keitum, 
Athens, and in England. To the magnetic disturbances 
on the Ist at Melbourne corresponds the aurora borealis 
at Peckeloh, Upsala, and in England, and the magnetic dis- 
turbances on the same day. Tothe magnetic disturbances 
onthe 15that Melbourne correspond the contemporary mag- 
* Bulletino Meteorologico dell’ Osservatorio del Collegio Carlo Alberto in 
Moncalieri. 7 
| : 
bourne corresponds the aurora borealis on the 21st at — 


