144 
LONG 
GALLERY. 
&c.;—the blue zircon from Vesuvius.— Silicate 
of alumina , to which belongs the kyanite or 
disthene, and a variety of it from Connecticut, 
called sillimanite . As appendix to these, the 
remainder of the table-case is to contain the 
varieties of Utliomarge , (now placed in Case 
24,) fuller’s earth , bole , scarbroite , haloisite , &c., 
together with such varieties of clay as are che¬ 
mical combinations of alumina and silica ; also 
the leelite , of Dr. D. Clarke, which appears to 
be a trisilicate of alumina. 
For the subdivision into groups of the Silicates 
with several bases , the reader is referred to the 
tickets affixed to the upper part of the interior 
of the following ten glass cases, which contain 
this extensive class of mineral species. 
Case 26 contains the following zeolitic sub¬ 
stances :— apophyllite , or ichthyophthalme,in fine 
crystals from Hesloe in Faroe, with stilbite, with 
tessellite of Brewster, with poonahlite of Brooke, 
&c.; a variety of apophyllite, called albine by 
Werner;— chabasite or chabasie, in groups of 
primitive rhomboidal and modified crystals ;— 
mesotype from Auvergne, Faroe, &c., to which 
is also referred the natrolite of Klaproth, the 
needle stone of Werner, the scolicite , the mesolite , 
krokalite , he. ;—thomsonite; — analcime , among 
the crystallized varieties of which are remark¬ 
ably large specimens of the trapezoidal and 
triepointe modifications from Fassa in Tyrol. 
Case 
