6” 
90 Lieut. Baddeley on the geognosy 
der with heat—the mineral in question burns to lime. It is 
therefore a carbonate and not a sulphate of lime. 
The translucency of this marble is remarkable, which joined 
to its colour (in favourable specimens a dazzling white, some- 
times slightly shaded with pink) renders it, to all external ap- 
pearance, well calculated for ornamental purposes, particularly 
for the manufacture of vases, lamps, &c.. If its abundance 
will allow of its being employed as a building stone, the ease — 
with which it may be worked, its solidity and whiteness, 
would render it at once an economical, a durable and a hand- 
some building material. Some have indulged the hope that it 
might be made an article of export ; but admitting that it is 
in suficient abundance, which we doubt, white marbles of a 
far superior character are found in many parts of Scotland, a 
full account of which may be found in some papers communi- 
cated by Dr. Macculloch to the Geological Society of London, 
and entered in the 2nd and Srd Vols. -of its Transactions; We 
here insert an extract from one of thése papers which will be 
found to afford some interesting information io the Gre- 
éian, Italian and Scottish marbles, 
«« Few substances in the catalogue of those with which 
economical mineralogy is concerned, have'excited more interest 
than statuary marble, from its rarity, its beauty and its indis- 
pensable necessity in the art of sculpture. It has at different 
times formed an object of anxious research in this country, 
and premiums have been held out for it by the Society of Arts. 
It has consequently been found in various parts of Scotland, 
as well as in Ireland, but no native specimens have yet been 
introduced into the arts. As the causes which have impeded 
their introduction have hitherto been such as may be considered 
adventitious being of a commercial nature, and not founded on 
any experience of their physical defects, it has been hoped that 
they might by perseverance and time be removed, and that the 
statuary marbles of this country might at some future day super- 
sede 
