A qua3ftz ctystal Scratched so as to show the method of slicing 
quartz in the manufacture of spectacle lenses. 
A series of fourteen specimens of crystal intended to show the 
various steps in the cutting of a brilliant. 
Case 5. — A beautiful collection of the doubly terminated 
quartz crystals loose and in the matrix from Herkimer County, New 
York which are commonly known as Little Falls diamonds* 
The peculiar ‘"face” and “owl” agates of Paraguay, South 
America, grotesquely cut to resemble owls and human faces. 
Fine examples of cut crystal from Asiatic Russia; seal having 
a Turkish inscription on one end and a Russian on the opposite, a 
head of a horse, and a bust of Ivan Turgeneff. 
A cut crystal from Mexico, the finest specimen of aboriginal 
work of this kind ever found in that country. 
Rock crystals from Madagascar, Brazil and Ural Mountains. 
Case 6. — Cut amethysts believed to be the finest collection in 
existence. 
Spanish topazes, a fine series. In the “Spanish topaz” the 
original coloring of the carbon in the smoky quartz has been 
changed by the action of heat to the rich hues so much admired. 
Cut and uncut smoky quartz from Colorado, Ural Mountains 
and Switzerland. 
The finest specimen of hydrolite known (the bubble of symmet- 
rical shape being two and one-half inches in diameter), together 
with many beautiful and rare specimens of agate and chalcedony, 
cut and uncut from many parts of the world. 
Case 7. — Beautiful specimen of crystallized apophyllite from 
Mexico, a magnificent piece of labradorite and a very beautiful 
specimen of Iron Pyrites. 
Case 8. — Fine specimens of mocha stones, and moss agates, 
of beautiful markings; jasper and tiger-eye of rare luster. 
Opals in ihe natural state, also engraved and polished, from 
Russia, Queensland, Mexico and Washington State, including the 
famous Sun God Opal from the Hope collection, which is said to 
have been known in a Persian Temple for three centuries. 
Interesting cut specimens of iolite, wollastonite, titanite, kyan- 
ite and prehnite. 
Case 9. — Fine collection of crystallized Amazon stone from 
