1817.] ° Scientific Intelligence, 245 
occurs in amorphous pieces in a marly rock. According to the 
analysis of Stromeyer, its constituents are— 
PAD Cr Sas aes oeccece 32202 
Raney Tae ene tarnwrens ce oa! le's'e solo’ 6 SE 
Bime 2907. 8e. Bis owaak eicleel et 5 Ul 0-730 
Sulphate of lime .........e80054. O°517 
Carbonate of copper ..... seis ahs -» 3°058 
Hydrate of ‘iron ...5......00eeee0. O'270 
VER cain sc sri as as's's'a's o's see cy aPoOe 
100°000 
Il. Silverkupferglanz. 
Professor Stromeyer has lately analysed a new ore, found by Pro- 
fessor Hausmann, in the Museum of the Academy. 
Its colour is intermediate between lead-grey and iron-black, with 
a tint of copper-red. Its fracture is conchoidal, and its lustre 
metallic. It is mild, and has the specific gravity of 6-255, 
According to Stromeyer’s analysis, it is composed of 
Silver eereer ee eeoeeedBeereseseeeesnes 52°2722 
POET eins Gp aweinid aves ceseeeees 30°4787 
EL LORE OTT TE eee eocee 03331 
Selpbut..ssicksca ts eeeenceseeee 15°7824 
He considers it as a compound of 
Sulphuret of silver ...........0..6- 60°646 
Sulphuret of copper .......,...... 38°654 
Sulphuret of iron ................ 0°700 
100°000 
Ill. Salts of Strontian. 
Professor Stromeyer, of Gottingen, has lately made a very 
careful analysis of various salts containing strontian for their base. 
The following are the results which he obtained :— 
1, Carbonate of Strontian. 
Carbonic acid........ 29°687 ’.... 42°2212 
Strontian e*eeeeeeeeesr 70°313 sis'are OO 
100 
Native carbonate of strontian from Argyleshire contains two per 
cent. of carbonate of lime. 
2. Sulphate of Strontian. 
Sulphuric acid ............ 43 2... 75°44 
erOntian HU es aie’ ed BT's. 00 
100 
