262 J. ©. Draper—Dark Lines in the Solar Spectrum. 
DRAPER. DRAPER. Pricker. | Hugeins. | Anastrom. 
Lines of Lines of Lines of spark 
Manic ther con poi spark essed crea attributed to 
with their condition. CRISES: oxygen. 
4133°00 free. 4132-90 4126-00 
4142°907 Fe. 4142-90 4135-008 
4145°'30? free. 4145°507 4147-00? 4149-00? 
4152°90' * 4153°008 
4155 et 4155°754 4158-004 4155°00 
4168°20'  §. 4168-404 4171-00? 
4184°90! free. 4185-008 4183-005 4184°50 
4189°90!  C. 4190-00! 4190-005 4° 89°60 
4254'30! free. “508 
A 4254°50 
4274°804 CrCa. 4275-008 
4278-108 Pb. 42787108 
4303-005 free. 
005 
43167602 * 4316508 
4320-004 TiC. 4319-758 
4325°10" Fe. 4325-208 432700? 
4328°10! Bi. 4328-204 
4331 ee. 31: 
4336-344 SCr. 4336-008 4334-00? 
4345°15? free. 4345°209 4341-008 4345°80 
: tc +2910 4347-0019 . 
4348'20? 4348°30 | ant 4347°00 | 4347°50 
4353-002“ 4353°108 
4365°00! BrCe.| 4365-2 4364:004 
4369-104 (rFeds, 4369-204 4369-004 
4394-50? free 4394504 
4413°20? 4413-201 4414-008 4414-008 4414°60 
4417-853 4418-0010 4418-008 4416-008 4418°30 
4445-002 4445-00’ 4443-004 
4450°00? Mn. 4450 00: 4450-004 
4463°00? Ce. 63-008 4457-004 
4467-30! Ce? 4467-208 4468-00 4467-000 
4483°80! Fe. 4483°758 4474:00! 
4572103 Be. 
4577" Ce. 4577 °55) 
4582-10? FeCe.| 4582-10! 
4589°304 free. | 4589-5019 : 4588-008 4590°80 
4595-403 4595-50" 4593-005 4596°00° 4595-90 
: b. 
tei] GP.| 4600-00 | soot 
4629-60? free. 4629-604 4639°0019 
4640-503 4640°2019 4640-0010 4640°00° 4640°25 
4648-154 Or. 4648-1510 4649-008 4648-008 
4661-504 free. 4661-508 4662-007 4662-007 
467490! CSe? | 4675-008 4675-007 4677-007 4674°75 
4698-653 4698-5010 8°00 4699-007 469800 
470465! Ba. 4705-001 4705-007 4706-007 4706750 
The table presents what may be called the oxygen region of 
the spectrum, only a few oxygen lines lying ede of its lim- 
its. As this also happens to be the region in which our photo- 
graphic apparatus and chemicals were most sensitive, we are 
enabled to present measurements of the majority of the lines of 
