XI. Experiments on Allanite, a new Mineral from Green- 
land. By Tuomas Tuomson, M.D. F.R.S.E. Fellow 
of, the Imperial Chirurgo-Medical Academy of Peters- 
burgh. 
[Read Nov. 5. 1810.] 
BOUT three years ago, a Danith veflel * was brought into 
Leith as a prize. Among other articles, {he contained a 
fmall collection of minerals, which were purchafed by THomas 
ALLAN, Efq; and Colonel Imriz, both members of this Society. 
The country from which thefe minerals had been brought was 
not known for certain; but as the collection abounded in Cry- 
olite, it was conjectured, with very confiderable Renee sae 
that they had been collected in Greenland. 
Amonc the remarkable minerals in this collection, there was 
one, which, from its correfpondence with Gadolinite, as defcri- 
bed in the different mineralogical works, particularly attracted 
the attention of Mr ALLan. Confirmed in the idea of its being 
a variety of that mineral, by the opinion of Count Bournon, 
added to fome experiments made by Dr Wott aston, he was in- 
duced to give the defcription which has fince been publifhed in 
a preceding part of the prefent volume. 
Axout a year ago, Mr ALuan, who has greatly diftinguifhed 
himfelf by his ardent zeal for the progrefs of mineralogy in all 
Az2 its 
* Der Fruuiine, Captain Jacos KETELSON, captured, on her _ Passage 
from Iceland to Copenhagen, 
