Chemistry and Physics. 217 
nebulous beginning of a band with two maxima, of intensity 6,, 
the whole being well-marked, the principal brightness beginning 
at about 118, the first and strongest maximum about 119, and the 
middle of the second maximum at 1214. Near 1224 is the very 
ill-defined right edge of this band, which is united to the one next 
following by.a slightly luminous background. (6) Band a little 
more feeble than that at 1074} and notably shaded; its left edge, 
somewhat nebulous, being at 1234, its middle about 1244, and its 
very nebulous right edge near 126. (7) Well marked band a 
_ little stronger than 6, at 1144 and strongly shaded from left to 
right, of intensity y; left edge sharp at 1264, the middle being at 
127.1, and the right edge, ill-defined, at 129. (8) Bend sensibly 
ita (10) Band very nebulous on both borders, about two 
Ivisions broad, notably more marked than 134, and a litile 
g and may be 
this metal, especially in the absence of more precise knowledge of 
its chemical properties.— C, R., lxxxviii, 1342, June,1879. 6G. F. B. 
a, On ‘Ne } 
