16 L. M. Rutherfurd on Astronomical Observations 
been seen. The places are means of six nights’ observations, 
which accord closely as might be expected from the decided na- 
ture of the lines, 
32°4 broad black line. 
spectrum extends to 14°5. 
irius has never been observed with the cylindrical lens. 
Castor.—Mean of five nights’ observations without lens. 24°78 
strong black line; 19°87 strong black line. 
« Lyr@.—Mean of four nights’ observations. 82:2 broad but 
difficult; 24°7 broad dark line; 19°5 broad dark line; 16:3 seen 
only on one evening. 
« Aquile.—Mean of three nights’ observations. 81°8 line 
very faint, seen but on one evening; 244 strong line; 19°33 
strong line; 164 faint line. 
Procyon.—Mean of six nights’ observations without lens. 
82:3 faint line seen but once; 27°3 faint line seen but once; 
24°75 strong dark line. Spectrum extends from 17°8 to 33°8. 
Regulus.—Mean of five nights’ observations, on one of which 
the lens was used, but without bringing out any more lines. 
24 ‘78 strong dark line; 19°9 strong dark line. 
rsa Major’s.—Mean of two nights’ observations with lens. 
31-2 very faint line, seen only once; 2435 strong line; 19°45 
well defined line. 
rsa Majoris.—Mean of three nights’ observations with lens. 
3°12 very faint line, seen but once; 2458 strong line; 19°5 faint 
line. A line was seen in the violet, but too faint to bear the 
least illumination. 
Ursa Majoris.—Mean of three nights’ observations with lens. 
24°53 strong line; 19°63 faint line; 16°5 faint line, seen but 
once. 
8 Ursa Majoris.—Mean of two nights’ observations with Jens. 
24°7 strong line. T'wo lines lower down on the scale were seen, 
but would bear no illumination. 
« Virginis, 8 Orionis, ¢ Orionis, 9 Orionis, ¢ Orionis and « Ursa 
Mayjoris have been repeatedly examined, but although many of 
them, particularly the first two, present bright spectra, no lines 
or bands have been seen. 
The sun’s lines B, C,D, #, F find their counterparts in the Iu 
nar spectrum. G does not appear, but whether this absence 
real or due to errors of observation remains to be proven. The 
moon was observed only twice—once me and once by Mr. 
24°83 do. 199 do. 168do. The 
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Cy Seo Dea eR 
