tlic 
826 J. Nicklés on the Coloring Matter of the Priv 
floras may have had a common origin, but the period of their 
divergence antedates the creation of the principal existing g 
neric forms of each. To what portion of the globe the maxi- 
by northern forms, their ultimate destiny must depend on that 
wer of appropriation in the strife for place which we seein 
the force with which an intrusive foreign weed establishes itself 
ology. Everywhere, however, we see the more widely distribu 
ted, and therefore least peculiar forms of plants, spreading, and 
ul : 
Art. XXVIL—On the Coloring Matter of the Privet and its appliat 
tion in the Analysis of Potable Waters ; by Mr. JEROME NICKLE. — 
THE berries of the privet (Ligustrum vulgare), which are oftel 
employed in Europe to color wines, contain, besides waler am 
ligneous matter, a portion of glucose, a waxy substan 
autiful crimson coloring matter, which is the principal element 
no nitrogen, and is much more stable than many black . 
stances. When exposed to a sufficient heat it gives & 
yaa charcoal, but the uncharre rtions remain un 
” oe 
violet blue liquid, from which b boiling a fine blue lake 1s pre 
Sipitated, which is insoluble in acetic acid, but dissolves Oe 
‘atic, citric and mineral acids to a red liquid, from whi 
