a 
_ ON WAYVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 305. 
VANADIUM—continued. 
Spark Spectrum Tnfenisity Spark Spectrum Intensity 
—_<<—150) | —..._____| and Character Ams FP ~ | and Character 
Thalén Loekyer Thalén Lockyer 
5233°2 4406-0 
5195°2 | 4400°5 
" 5191-7 | 4395-0 
4 4881°1 4389-0 
i" 4874°6 4384-0 
4864°1 4379-0 
4851°1 4352°5 
j 4843-1 4340°5 
F 4831°6 4332°5 
4593-1 4329-5 
4585°1 4310°0 
4579°1 4297-0 
45761 4292°5 | 
4459°1 4283°5 
45761 4277:0 
4459-1 4272°0 
4407°6 4268°5 
4406°1 41100 
7 4400-6 3997°9 
4395°1 3992°5 
4389°1 3989°6 
4384-1 3923-7 
4379-0 3913°6 
4576-0 3909°3 
4459:°0 3901°3 
4407°5 
Lockyer has observed the following lines in the arc spectrum of Vanadium be- 
een wave-lengths 3900 and 4000 :—3998-0, 3996°6, 3994-1, 3992-1, 3989-8, 3988-2, 
983°8, 3983°6, 3979-7, 3978°7, 3978-3, 3976°8, 3974-5, 3972°5, 3971-2, 3967-0, 3962-7, 
950°9, 3949-4, 3947-5, 3942-7, 3941-2, 3940-3, 3938-1, 3937-2, 3936-7, 3935-0, 3933°8, 
933°0, 3930°2, 3929-0, 3927-0, 3924-4, 3923-7, 3921-6, 3919-6, 3913°6, 3912-2, 3911-6, 
900°5, 3910-2, 3909-2, 3906-2. 3901-6, 3900-5. 
YTTERBIUM. 
Spark Spectrum Spark Spectrum Spark Spectrum 
| Intensity ||——-- — | “Intensity ||| Intensity. 
. Thalén Thalen 
| 2 5766'0 2 5431-7 4 
2 5749°5 1 5426°5 2 
2 5736°0 2 5414-0 2 
1 5729°5 2 5389°0 1 
10 5718°5 4 5367°0 1 
iy 5651°0 4 5363'0 1 
4 5630°5 1 5352'0 10 
4 5619-5 2 5346°5 8 
In 5587-5 4 5345°0 8 
6 5580-0 1 53340 10 
4 5559°5 1 5300°0 4 
6 5555°5 10 52790 ca 
4 55360 2 52760 2 
1 55285 2 5257-0 4 
6 5476-0 10 5243-0 2 
6 5453-0 2 5239°5 2 
4 5447-5 4 5226:0 j 
1885. ; 
