ISLAND OF ANTIPAROS. 129 
their surface were exceedingly minute: where CHAP. 
they were large, the crystals were also large, 
some of them exceeding two inches in diameter. 
Another surprising fact is, that, although the 
outer crust of these crystals be opaque, and 
similar to the exterior incrustation of the con- 
cretions themselves, the crystals, when broken, 
are each, and all of them, integral parts of the 
stalactite upon which they have been formed. 
We carefully detached a great variety of speci- 
mens, to illustrate and to confirm these obser- 
vations : and although the Waiwode who accom- 
panied us, like a child craving the toy which 
amuses another, insisted upon having the finest 
specimen, under the pretext of presenting it 
to his ignorant patron the Capudan Pasha, we 
had the good fortune to bring many of these 
specimens to England, and to the University of 
Cambridge, where they have been annually 
exhibited during the Mineralogical Lectures. 
It was in that University, when the author was 
engaged in shewing them to the lamented 
Tennant, Professor of Chemistry there, that 
the Professor noticed among the stalactites one 
which was remarkably distinguished from the 
rest, by, its fascicular structure, by its supe- 
rior hardness, and by the appearance of rays 
diverging from a common centre towards the 
VOL. VI. K 
