23 
different colours when viewed in different posi¬ 
tions. 
(Case 10.) This case contains zeolitic substan¬ 
ces, viz. several varieties of scolicite and of meso - 
type, among the specimens of which may be par¬ 
ticularized those with perfect prismatic acicular 
crystals (needle-stone of Werner); the delicately 
fibrous varieties ; the red compact variety, by some 
called crocalite, &c.—The natroli e of Klaproth, 
of which a few specimens are added, is by some 
considered as a variety of mesotype.— Stilbite, 
mostly crystallized : among the coloured varieties 
is the red from Fassa (F assait).—A pophg Hite, seme 
varieties of which have been mistaken for mesotype 
and stilhite.— Av.alcime , among the crystallized 
varieties of which are remarkably large specimens 
of the trapezoidal modification .—Chabasite or 
chabasie, in groups of primitive rhombohedral 
and modified crystals. 
(Case 11.) Continuation of zeolitic substances: 
— Prehnite , crystallized and massive ; to the for¬ 
mer belongs the koupholite, to the latter may be 
referred the substance known by the name of Chi¬ 
nese white jade, of which some specimens are ad¬ 
ded.— Harmotome , or cross stone, both in simple 
and cruciform crystals, from Oberstein, Strontian, 
and Andreasberg in the Hartz, which last locality 
has procured to this substance the names of andre - 
olite and hercinite.—Among those substances de¬ 
posited in this case, which are in some respects re¬ 
lated 
SALOON. 
Nat. Hist. 
