70 Seentific Intelligence. 
our magnetometers than certain other actions which are less con- 
spicuous 
Royal Observatory, Greenwich. 
Magnetic changes, Sept. 1, 1871, from 2h. to 10h. 
Hours. Greenwich Mean Solar Time. 
2h. 3b. 4h. 5h. '? 6h." 7h. i .8h. 9h. 10h. 
19°25 
r= 
Bo) 
3 
A=! 
cs} 
Yo 
=) 
=| 
=~ 
oe 
3 1905 
= 
0-100B& 
1018 
5 102m 
So . “108 
= 10m 
S “105 
g 1068 
& ‘101g 
a] 10:4 
. 0! 
— . 0710/8 
So 
Se 
BO 
Se 
oh iis 10.10 11.10 12. 3. 40 4.10 5.10 
Hanover isa | Solar Time 
The baits dotted line indicates the probable time of the explosion, 12h. 40m 
Hanove 
Vh = “thar can be no possible doubt that there is a close con- 
nection between the condition of the solar surface and Bega ee 
disturbances on the earth, much further investigatio 
required to ar seas the matter. — Boston Journal of Chemistry, 
ecember, ae 
i. The e firs t Appendix to the Washington Observations for 
1869, being Reports on observations of the total solar eclipse of 
Dec. 22 d, 1870, by ‘the observers of the U. 8. N. Observatory, has 
just been published. Prof. Newcomb arranged to observe at 
Gibraltar the transits of the sharp cusps of the solar crescent 
across the wires of a telescope, in order to obtain materials for cor- 
recting the lunar nine The telegraphic determination of the 
longitude of Gibraltar, which is necessary na the completion of his 
purpose, was not possible at the time owing to an unfortunate 
break in the cable. Profs. Hall, Harkness aa Eastman, at Syra- 
cuse, made successful and detailed Sigg onal oe time, and upon 
the nature of the light of the corona and inences. 
rof, Harkness concludes an extended ose ussion by proposing 
this os of the corona, “ When seen in a clear sky the coron@ 
