388 Scientijic Intelligence — Miscellaneous. 



the Oiiral, that, according to very accurate data, the total produce 

 during the year 1842 amounted to 16,000 kilogrammes (970 pouds 

 = 15,988 kil.) = upwards of 35,000 lb. English, of which Siberia 

 alone, to the east of the Oural, furnished more than 7800 kil. (479 

 pouds = 7846 \L\\.).—VInstitut, No. 472. 



8. Fahlerz containing Mercury, from Himgary. — Professor 

 Zeuschner procured this remarkable Fahlerz during his geognostical 

 tour in Hungary, and wished it to be analyzed, on account of its con- 

 taining mercury. It occurs at Kottorbach, in the vicinity of Iglo, and 

 is very probably the same compact Fahlerz, containing mercury, from 

 Poratsch, in Upper Hungary, which Klaproth analysed. The ore is 

 only found in a massive state, and is frequently interspersed with cop- 

 per pyrites, from which the portions destined for analysis were carefully 

 purified. Hr. Scheidthauer performed the following three analyses 

 of the ore in the laboratory of Professor H. Rose, but it was only in 

 one of them that all the component parts were determined. In the 

 second analysis, from particular causes, the whole amount of mercury 

 could not be obtained ; and in the third the sulphur alone was de- 

 termined : — 



97.8G 

 -Poggcndorfs Annahn, 1843, No. 1, p. 161. 



MISCELLANEOUS. 



9. Egyptian Bronze. — Egyptian bronze consists of copper and 

 tin, and occasionally a small proportion of silver. For large 

 tools, it was probably a mixture of the two former metals only. 

 This alloy, when first cast, would be extremely brittle and hard, 

 but may have been tempered, as the Chinese now temper their 

 bronze articles, viz. by plunging them repeatedly into cold water 

 whilst at a red heat. To this operation, perhaps, Homer alludes 

 in his simile of an armourer's forge, though it has been adduced 

 to prove the use of iron ; but the metal Joes not, at the later period 

 of the Trojan war, seem to have been in general u^e. It even 



