392 Scientific Intelligence. 
liant. The spectrum of the light produced in this manner is more 
complex than that resulting from the anid eG of small quanti- 
ties of saline matter _ a oe us flame. The upton is va- 
ing to the dark rays © and F of the solar spectrum. ith a 
strong solution of chlorhydric acid in water the tint of the dis- 
ge is slightly violet and the two red and blue rays are more 
distinct th ater. ere are also an rt band and a 
municate to the light of the aise ies the color due to the ele- 
ments of the salt. Thus water containing one one-thousandth 
part of its wank of chlorid of strontium gives very distinctly the 
orange an ue rays epeteinaes of strontium. With concen- 
trated solutions the effects are more marked and with the chlorids 
in particular they are ey brilliant. Thus the chlorids of stron- 
tium, calcium, sodium, meen, copper and zinc give fine effects. 
: iin p 
tassium, antimony, sue: ma be Pe silver, uranium, &c., give ef 
fects which are more or less marked. In general the ‘lines are 
more numerous than in the spectra of flames containing the same 
saline elements, which: doubtless arises from the higher tempera- 
ture, but in all cases the lines are ee: same as those given by Dun- 
sen and Kirchhoff. Thus with a saturated solution of chlorid of 
strontium, besides the ear and neh clear blue, we see two violet 
rays, one more intense than the pe “tee green rays one of 
ma SHotelumizions oe Combtes Rendus, ixvi, pi 
2. on va ee a of cast iron to the gases pee in 
ptig At the in of Gen. Morin, Messrs. - Sainte- 
