904 
CAPTAIN ABNEY AND LIEUTENANT-COLONEL TESTING 
Compound. 
Aldehyde 
(Kahlbaum). 
Paraldehyde 
(Kahlbaum). 
Lines (L) and bands ( B). 
Approximate 
wavelength. 
Scale on plates. 
Intensity. 
732 
867 
89-51 
907/ 
9111 
925/ 
947 
9711 
1020/ 
985 
1020 
10401 
1090/ 
10471 
1061 / 
1135 
1165 
732 L 
857 L 
B 
B 
880' 
892 __ 
8951 
908/ 
927 L 
9471 
987/ a 
959 L 
987 L 
10031 -r, 
1040 J B 
10101 
B 
1020 / 
1072 B 
1100 B 
0 rapid to 4 and 
thence gradual 
to | at 892 
f Steep from 0 to f, 
< gradual to 4, and 
[_ steep to 0 
/Band shaded 
J equally 0 to 4 
I and 4 to 0, 959 L 
L I 
3 
4 
{ Shaded equally 
from 0 to 4 and 
i to 0 
1 
732 
867 
895 
913 
980 
to 
1177 
980 
992 
983 
998 
1004 
1001 
1040 
1040 
1061 
1061 
1090 
1103 
1143 
1156 
1162 
1171 
1177 
732 
L 
857 
L 
880] 
i B 
898 j 
9551 
1 
to 
1110 J 
1 
955 1 
963 j 
959 
L 
9701 
974 j 
972 
L 
1003 
L 
10031 
i B 
1020 j 
1020 
L 
1040 
1050 
1080 
1090 
1095 
1105 
1110 
} 
} 
B 
B 
B 
J 
l 
0 to Tat 892 
1 to 0 at 898 
Gradual shade of 
background 0 to 
3 
0 to 4 
4 to (J 
1 
0 to 4 
4 to o 
1 
1 
0 to 1 
1 to 0 
1 
0 to 1 
1 to 0 
0 to 1 
1 to 0 
0 to 1 
1 to 0 
1 
Rather a fuzzy line. 
This band appears 
through the wider 
previous band. 
A hand as in ethyl 
iodide. 
N.B.—From 1040 to 
1120 background /, 
and end of spec¬ 
trum at 1160. 
End of spectrum. 
