3 ] 
them with regard to their chemical composition; 
such as the agalmatolite of Klaproth (biidstein 
of Werner, talc glaphique of Hauy) employed by 
the Chinese for carving images, vessels, &c.— 
The keffekii or meerschaum, from Natolia, of 
which pipe bowls are made; and a related sub¬ 
stance, called keffekilite, by Dr. Fischer, who dis¬ 
covered it in the Crimea.—Lithomarge, the more 
remarkable varieties of which are, that of a reddish 
yellow colour, from Rochlitz, in porphyry ; the 
fine purplish blue variety from Planitz, called 
terra miraculosa Saxonica by old writers.-— Ful¬ 
lers earth,—Bole ; green earth, &c. 
(Case 19.) In this, and the four following 
glass-cases are deposited the various carbonates of 
lime.—Crystallized carbonate of lime or calca¬ 
reous spar ; specimens illustrative of the cleavage, 
supernumerary joints, colour, &c. ; primitive 
rliombohedron (rhomboid) ; the various secon¬ 
dary, rhombohedrons (all of which, together with 
the modifications in the next cases, are deter¬ 
mined after Hauy and Bournon) : among these 
the most common, but not the least striking, is 
the inverse rhombohedron, so called from being 
as it were an inversion of the primitive ; the same 
with a considerable admixture of quartz, com¬ 
monly called crystallized sandstone of Fontaine¬ 
bleau, &c. &c. 
(Case 20.) 
SALOON. 
Nat, Hist* 
