580 Chronicles of Science. [ Oct., 
Value. 
Tons. Cwt. £ &, WE 
Tron-pyrites os) Peseeeter LIGIS89) Th se 67,454 5 10 
Gold quartz .. .. « 3,241 4 
PART ONIO) | Sele acs | sabi ele 1525505 2,112 10 6 
Ochres and gossans .._-. 5,480 0 5,807 10 0 
Nickel PA es | in ay, 1412 5 
Woltram:* "cae oe 9 an es 1010 .. 62 0 0 
Manganese Eile sarge tot 807 18 .. 1,615 16 0 
ERONVOBES So as, feel es 9,965,293 0 2,936,322 11 4 
OGALiy ets ce bos) Veo pee OE OUI 2A 0 26,125,312 0 0 
IBATYiCS poecee 06) Mura pk 4,000. 0 4,875 0 0 
Cliivstes. es" ees eens os 1,125,924 0 375,900 0 0 
Salieries aa: Tye pemsee Lets 993,880 0 223,010 14 0 
Coprolites ia <-, 2.0) « 37,000 0 45,500 0 0 
The only point calling for attention appears to be the continued 
increase in the production of coal, in the face of the depression 
which has been continued for some time in every description of 
manufacture. Metalliferous mining does not rally from the low 
state to which it has fallen. By a desperate effort the production 
of ores is maintained with tolerable steadiness, but the mines which 
are working to a profit are exceedingly few. 
The metals produced from the ores raised from the mines of 
Great Britain and Ireland were as follows :— 
Value. 
Rink, 325. Oe 8,700 tons .. £799,203 
Copper .. TOP233e 55 eh 831,761 
Heady. —.: 68,437 ,, +s) pal, 509 
FANG te 1 ch BPHOUL bs 33 79,693 
Gold” .: =. 1,520 ounces .. 5,320 
Tron... ss A Tia tt ODS, o.- LE Oet- ae 
Silver £ 804,024 ounces .. 215,400 
Of Foreign copper ores we imported 73,957 tons, and of regu- 
lus 28,825 tons; these, smelted at Swansea and Liverpool, produced 
19,567 tons of copper. 
In connection with these statistics of our Mineral produce, we 
find in the ‘ Moniteur des Intéréts Matériels’ the following estimate 
of the production of copper in the world at large in 1866 :-— 
Tons. Tons. 
Q@hilirand “Perm. © s.7 °°). ie "84,397" | Dorkey © oi) 2S as, cole ee, ee 
United States:. «. «fot ,{4850)/" Belerum® (227. 9 ees 
Minwignds. up ss, sa ae “GDL, A3 1 Spain) do es. lee he ee 975 
Russia. «cc. ce we we’ 596002)" Etaly,” Coast~of “Africa, ‘and é 
Astral. ene st. as «. “yea Mediterranean ah \ 850 
Ansa es ose sats jas (Seti. eeempue FSD CAs, bk ee 570 
PrURSIA Meets ee. 6 3e)~=6VOSOU0| Elessarand Nassau. >, oes eee 855 
Sweden-and Norway. -- .. 2;850 | Hanover’... :. .. 9... «. 200 
Chinsend Japan... ©... --, 2,700" )| Portueal Oo) a. cea 125 
Brances eo toa ts 2,500 | Sundry places .... 500 
Within a short period it appears probable that there will be a 
revival of Mining in Africa. Reports are received giving a most 
favourable account of some of the copper-producing districts of 
South Africa. There is no doubt that an extensive coal-field exists 
