184 Scientific Intelligence — Mineralogy. 



4. Emery in Asia Minor. — M. Tchihatcheff, in his recent explo- 

 rations in Asia Minor, has discovered extensive beds of emery in the 

 western portions of this country, particularly between the ruins of 

 Stratonicea in Caria and Smyrna. 



5. Gold in Canada. — I have had an opportunity lately of seeing 

 the masses of gold found in the valley of the Chaudiere. Mr Charles 

 Do Lery, the proprietor of the seigniory on which the precious metal 

 is found, shewed me the original mass, first found in 1833, of which 

 mention is made by Lieut. Baddeley of the Royal Engineers. Its 

 weight is about 1052 grains troy. Other masses of equal weight 

 have also been found in the bed of the same stream. The weight 

 and density of these were taken, which were respectively, — 



Weight, 



Numerous smaller masses have also been found. The density indi- 

 cates the presence of silver in the gold, which the faint colour also 

 confirms. The analysis of a fragment by Mr Hunt gave 13-67 per 

 cent, silver. The less density of the larger mass was owing, doubt- 

 less, to foreign matter mechanically entangled, as well as to inter- 

 stices filled with air. The lumps are worn smooth, as is usual in 

 alluvial gold ; but fragments of quartzose gangue could still be de- 

 tected in some of them. Mr De Lery informs me that they were 

 firmly imbedded in what appeared to him to be slate, but which is 

 probably a concrete of detritus, cemented by oxide of iron. Chromic 

 iron, titaniferous iron, serpentine, spinel, rutile, and talcose rocks, 

 remind us very strongly of the mineralogical characters of the Russian 

 gold regions, and their occurrence with the gold in Canada certainly 

 aflbrds favourable grounds for the hope that this may become a rich 

 auriferous region. 



As yet no excavations have been made on any scale of magnitude 

 sufficient to warrant an opinion of the actual wealth of the deposit. 

 A few tons of gravel have, however, been washed in a rude way with 

 the Berks rocker, which have yielded about ^4 of gold to the ton of 

 gravel. — (American Journal of Science and Arts, Second Series, 

 vol. vi., No. 17, p. 274.) 



6. Produce of Gold in the Ural and Siberia in the year 1846. — 

 According to a notice in the " Kommertscheskaja Gaseta," or 

 Russian Commercial Journal, published by the Ministry of Finance, 

 in February 1847, there had been remitted to the mint at St Peters- 

 burg 1397-378 poods of gold, the produce of the imperial and pri- 

 vate mines in the Ural and Siberia during the year 1846. There 

 was still expected 325-368 poods of gold, the produce of these mines 

 in that year. 



