10G6 
PROFESSOR W. N. HARTLEY ON 
Plate 6. Crewe. Sensitised for the Red PtAYs. 
1st 
spectruin. 
2nd 
spectrum. 
3rd 
spectrum 
A. 
X. 
A. 
r .. 
6177 
6173 
6135 
6135 
< .. 
6109 
6101 
.. 
6042 
6046 
L •• 
5991 
6017 
f .. 
5958 
5959 
1 .. 
5917 
5917 
5893-7 
f •• 
5875 
5875 
5831 
5831 
1 
5794 
5794 
r5735 
5736 
5719 
, , 
5670 
5625 
•' 
1 ou-- 
1 5590 
5586 
5586 
5556 
r .. 
5476 
5457 
« • 
, , 
5439 
S 
• • 
5418-5 
, , 
5384 
5384 
5384 
L5370 
5369 
5369 
f5335-5 
5335-5 
5.335-5 
5294 
5303 
5270 
< 
* • 
5231 
.. 
5203 
• • 
5198 
L •• 
5170 
Edge of band 
I 
)>Bands degraded towards the red 
J 
) Band degraded towaixls the red 
/ Line on band or edge 
Sodium 
Edge of baud') 
„ ,, ,, > Group of bauds 
?? 5? ?? J 
Description of spectrum, 
Edge of band 
Group of bands 
8 ’ 
. urc 
I Strong, broad 
)> U )) J 
Edge of baud'] 
9 -) 9 9 I 
” ” ^Group of bauds 
?) 99 99 I 
^’1 51 11 _J 
Line on band 
11 IT 1) 
iMore refrangible i Group of 
' bands 
edge of band 
J Sometimes 
appears as a 
line 
Remarks and lines for com¬ 
parison. 
6178. Edge of band, Watts 
6109. \ Conspicuous pair of red 
6097. / lines, Watts 
6006 } faint lines, Watts 
5917. Watts 
5872. Faint line. Watts 
5790. Strong,fine line,brightest 
edge of whole group. Watts 
5580. 
Edge 
of band, Watts 
5453. 
Watts 
5443. 
5) 
4533. 
5? 
5370. 
This group re¬ 
sembles the same 
5269. 
group as seen on 
5229. 
99 
the plates from 
Dowlais. The bands 
are more numerous 
than on other spec¬ 
5168. 
99 
tra taken at Crewe 
The bands on Plate 6, Crewe, are less well defined on spectrum 3, but are very 
well seen on spectrum 5 ; that is to say at the close of the fining stage. The tempe¬ 
rature being high, and the carbon issuing from the mouth of the converter, all in the 
condition of carbon monoxide, there are no carbon bands or lines to obscure the 
manganese spectrum. 
Plate 2. Spectrum 3. Crewe. 
A. 
6196 Line seen at the edge of a baud. Spectrum -1. 
61311 p . 
6077 1 
6020 Line on band. 
Band degraded toAvards the red. 
5952 1 
5893/ 
