153 
forty-three pounds);—the euclase , a rare crystal¬ 
lized mineral substance, discovered by Dombey 
in Peru, but since only found, as loose crystals, 
at Capao, near Villaricca, in Brazil, and in 
the chlorite slate of that neighbourhood \—chry - 
soberyl or cymophane, among the specimens of 
which may be specified those in a matrix of 
quartz and feldspar with garnets, from Haddam 
in Connecticut, and also those from Saratoga 
and New York. In this Case are also placed 
the specimens of lazulite or lapis lazuli (which 
furnishes the valuable pigment known by the 
name of ultramarine), the haiiyne, and a few other 
of those imperfectly known silicates of alumina, 
soda and lime combined with sulphates. To 
these latter also the sodalite (next Table Case) 
is commonly referred, but it contains muriatic 
acid. 
Case 37 is chiefly occupied by the tourmaline , 
a species not yet well understood as to its che¬ 
mical constitution, but many varieties of which 
have been found to contain boracic acid. 
Among those here deposited are, the rubellite , 
also called siberite (tourmaline apyre of Haiiy), 
a specimen of which, remarkable both for size 
and form, is that in the centre of the Case: it 
was presented by the King of Ava to the late 
Colonel Symes, when on an embassy to that 
country, and afterwards placed by the latter in 
Mr. Greville’s collection ; other red and blue 
varieties, 
LONG 
GALLERY. 
