130 HartLey—An Investigation of the Connexion between 
the elementary substances when oxysalts only were used. Chlorides in large 
quantity yield chloride bands along with bands obtained from the oxides, but 
which are the bands of the metals, though possibly undergoing combustion. 
The banded Flame-Spectra of Beryllium, Magnesium, Zine, and Cadmium. 
These were previously investigated by Hartley and Ramage.* The banded 
spectra were not so easily obtained as those of alkaline earth group; but it was a 
very notable feature in the spectra of magnesium, zinc, and cadmium, that lines 
common to the are and spark accompanied the bands. A retrospect of these is 
given. 
MAGNESIUM. 
Banded Flame-Spectrum. 
Lines. 
IN 
5184 
5174} A triplet common to flame, arc, and spark. 
5178 
4572 A line common to flame, are, and spark. 
ZINC. 
Banded Flame- Spectrum. 
Lines. Corresponding Spark-lines. 
A rN 
4811 Kirchhof, ; . . 4810°1 
4723} A triplet. Exner & Haschek, . .  4722°37 
4680 Exner & Haschek, . . 4680‘4 
BBD) Three lines, components of a band; 
4255 a close group ; similar to three in 
4250 j cadmium. 
4197 Components of a band. Exner & Haschek, . . 4195.7 
CapMiIUM. 
Banded Flame- Spectrum. 
Lines. Corresponding Arc-lines. 
rN rN 
5086 Kayser & Runge, 5086:1 
4800| A triplet. Reversed are lines, 4800:1 
4678 Eder & Valenta. Spark,. (4678°4 
4417 Exner & Haschek. Spark, 4415-7 
4411 Eder & Valenta, ~ 44132 
4404 Eder & Valenta, 5 4403°5 
Kayser & Runge observed 4413°5 in the are. 
4294 Components of a band. Eder & Valenta, . 4293°9 
4215 ” ” . . 4214:0 
4179 bn a 5g ANTES 
4126 5 ‘ 5g ARR 
4076 a i . , 4075°8 
4058 & i . . 4057-5 
4034 i . > 6 ORK 
4032 x i 2030.0 
4008 4009°2 
” th) se S 
* Scient.. Trans. Roy. Dublin Soc. 
