214 
Scientific Intelligence. 
to make out their geognostical structure. Professor Buckland 
has prepared a Memoir on this subject, which, besides many other 
interesting statements, will contain a series of facts, proving, that 
the great formation of Alpine limestone is of the same age with 
the oolite and lias of the English series. 
40. Discovery of Green Fluor-Spar in Banffshire. — As 
fluor-spar is one of the rarest of our Scottish minerals, we are 
liappy to have an opportunity of adding a new locality to those 
already known, by informing our readers, that James M. Hog 
junior of Newliston, has lately discovered a grey variety, associa- 
ted with green antimony in a calcareous-spar, on Lord Eyfe'^s 
estate, near the town of Keith, in Banffshire. lt>' occurs mas- 
sive and disseminated, but was not observed to be regularly 
crystallized. Mr Hog found, that when exposed to heat it be- 
came remarkably phosphorescent. 
41. New Scottish Localities (f Ores (f Titanium. — 1. Iserine. 
This ore occurs along with iron-sand, in the form of a coarse pow- 
der, on the shore of the Loch of Triesta, in the island of Fetlar in 
Shetland. Both ores may be found imbedded in small grains in 
the primitive limestone in the neighbourhood. 2. Common 
Sphene. Small crystals of this ore occur with the preceding in the 
limestone of Fetlar. It is likewise found imbedded in the por- 
phyritic gneiss, at Altaness, in the island of Burray, Shetland. 
3. Rutile. This ore occurs in small crystals, imbedded in the 
gneiss of the island of Burray. It frequently occurs likewise 
in acicular crystals, traversing the crystals of quartz, which line 
the drusy cavities of amygdaloid, in Fife and Perth. In some 
cases the amygdaloid consists of trap-tuff, in others of porphyry 
or clinkstone. It occurs in great beds in the old red sandstone 
formation.- — Dr J. Flemings FlisJc. 
42. Extraordinary mass (f Platina discovered in Peru. — A 
Negro slave in the gold mines of Condoto, in the Government of 
Choco, in South America, found a mass of platina of extraor- 
dinary magnitude, and which is now deposited in the Boyal 
Museum, in Madrid. It weighs rather more than I J pound, 
and is the largest piece of this metal hitherto met with. The 
large specimen brought from America by Humboldt, and depo- 
