156 
ME. W. HUGGINS ON THE SPECTEA 
Table III. 
Solar. 
Air. 
Na. 
K 
Ca. 
Ba. 
Sr. 
Mn. 
Tl. 
Ag- 
Te. 
Sn. 
Fe. 
pi f 1599 
^ 1 1600 
1605 3 s 
1603 s s 
1609- 5 s 
161 7 3 b 
1617- 5 s 
1608 s s 
1612 7,5 s 
1638 2 s 
1658 s n 
1613- 3 s 
O 1678- 5 
I651 ] - S s 
1657 2 n 
162 1- 3 s 
1656 7 - 5 s 
1675 s n 
1632- 3 s 
O 1699 5 
1659 1 - 5 s 
1645 1 s 
N 1713h 
1702 1 s 
1665 1 s 
1653 1 s 
f 1708 
N 1718 h* 
1745 1 s 
1662- 5 s,d 
b 1 1723 
N 1721 h 
1747 4 n 
1691- 3 s 
[1731-5 
O 1737- 3 
1746 1 n 
1773 1 n 
1696- 3 s 
1698 s s 
1713- 7 s 
1 753- 5 n 
1817 s 
1851 *n 
1728 1 s 
1731- 5 s 
1753- 3 s 
1767- 7 s 
N I860- 5 
1821 3 n 
1775-5 s 
1821 h 
N 1900 3 
N 1929- 7 
1907- 7 s 
1885 1 s 
1909- 5 n 
N1941- 5 
N 195 1- 5 
N 1956- 5 
N 1960-5 W 
N 1967 10 
N 1978- 5 
N 1990- 3 
1991 h 
1935- 3 s 
1999- h 
1940 7 -5 s 
O 2043- 5 
2021 1 s 
2036'- 5 s 
O 2060- 7 
2029 2 s 
N2079- 5 
2060 h 
2146 2 s 
O 2089- 5 
0'2119- 5 
2075” n 
2145 1 s 
N2140- 5 
2176 1-5 s 
2092 1 s 
O 2145- 5 
N 2168- 5 
2133* n 
2098- 7 s,d 
2147 1 s 
2172- 7 s 
0 2181- 5 
2180 1,5 s 
2185 1 s 
N2192- 3 
2191 1 h 
F 2200 
Solar. 
Air. 
Na. 
K. 
Ca. 
Ba. 
Sr. 
Mn. 
Tl. 
Ag- 
Te. 
Sn. 
Fe. 
* When the induction spark is taken in oxygen, a faint line is seen nearly in the position of the nitrogen line 
1718. Since the lines of oxygen have a diminished intensity when the spark passes in air, this line would he 
too faint to he distinctly observed in the air-spectrum, in which it occurs in a position of close proximity to 
brighter lines of nitrogen. 
