76 Scientific Intelligence. 
nitrogen when compared with it appeared double, and each com- 
ponent nebulous and broader = n cy line of the nebula. This 
latter line was seen on several nights to be apparently coincident 
with the middle of the less srefrangible line of the double line of 
nitrogen, This observation was on one night confirmed by obser- 
vation with the more powerful spectroscope. ..... have not 
yet been able to find a condition of luminous nitrogen in vas 
the line has the same characters as those presented by the line 
in the nebula, when it is single and of the width of the slit... .. 
Upon the whole, I am inclined to regard the line in the nebula as 
probably due to nitrogen. 
“Second line. This line was found by my former come 
rrow and are defined. sf rat not been able to obtain 
decisive observations as to the ene motion of the nebula in 
the line of sight. 
In his paper Dr. Huggins gives the details of his observations 
on various stars, and the following are his results tabulated. 
Taste L—Stars moving from the Sun. 
Star. Compared Apparent motion Earth’s Motion 
with in miles. motion. from Sun. 
oe ee H 26 to 36 —10 to 14 18 to 22 
motolweds os: Na 37 may 9 22 
C21 SM sie i ine pli [ —15 
Cin 40 to 45 = 23 to 28 
Magulus, 2200 iG : 30 to 35 —18 12 to 17 
8 Ursse majors... Bee hae ied ia ee pee 
pedis eee ee as ee oe a 
5 re se pane Pgs 5 | 30 —9 to 13 17 to 21 
£ “ a pein a Be nes ede atte 7 edn are aN Goes gas eg 
¢ ae “ sie 7 Bip ae ee Ci ino, amine Nl nia ee 
B deen A Sees ERGs gre Gouge ja SG ee ees 
A es ee : GC ee Po Sia age ee eee 
@ Virgie dS ace Be er hate ae HDR ore atari tee <8 
a Coronz borealis, Te | ees apie oe ee ee eee 
PROCyOH, oc ee ree Sve 2 eet eae ee 
Oapella oc a a a eae Se NT get eee ee 
Aldebaran? ....._- Me ee ao eee ee 
iopeiz, ....__ a a See ee eee 
Huggins was anticipated in his observation of this fourth line by ene 
* Dr. Huggi 
Herschel and by Prof. J. Winlock, who mri ata discovered it; the first 
the night of Oct. 25, 1868, at Bangalore, India, the second, with perfect begets 
ness, at Harvard Observatory on the night of Nov. 13, 13, 1868. Mr. Huggins was 
informed as to the previous observation of Prof. Winlock, but does not mention it 
M. M. 
