50 
DR, A. SCHUSTER OR THE SPECTRA OF METALLOIDS. 
Elementary Line Spectrum of Oxygen. 
Ware-lengtli. 
Intensity. 
Remarks. 
5205-4 
6 
This is the strongest line of Oxygen in the green group and well 
visible in the atmospheric lines. It is, however, omitted in 
5189'6 
3 
Thalen’s map of the atmospheric lines. 
5175-4 
3 
5159-3 
5 
4954-4 
3 
4942-2 
8 
4940-2 
3 
4923-7 
6 
4906-1 
5 
4890-1 
3 
4871-0 
4 
4864-0 
3 
4860-2 
4856-2 
3 
4 
- 
4850-0 1 
4841-6 / 
1 
This is a very weak band, but it is always present. 
4750-1 
1 
4740-9 
1 
4709-0 
6 
4704‘b 
10 
4698-5 
8 
4695-5 
1 
4675-4 
8 
4673-1 
1 
4660"7 
8 
4649-3 
4 
4648-0 
12 
4640-6 
7 
4637-4 
6 
4608-0 
2 
A weak band. 
4605-7 
1 
4595-1 
6 
4589-9 
6 
4469-2 
4465-3 
4 \ 
3 j 
The space between these two lines is filled up with weak light. 
4452-7 
2 
4448-3 
4443-0 
2 
1 
4416-8 
7 
4414-5 
8 
4395-6 
1 
4366-2 
4 
This line must not be mistaken for the line OS of the compound 
spectrum, of which faint traces are sometimes seen at its less 
refrangible edge. 
4353-5 
5 
4349-0 
6 
4346-9 
5 
4345-0 
1 
4341-4 
1 
4336-6 
1 
4319-2 
3 
4316-5 
O 
O 
