1864. | Mining, Mineralogy, and Metallurgy. 149 
published returns, which have been issued by the Governments of Spain 
and Prussia. 
The number of productive mines, in Spain, in 1862, was 1,798, 
employing 32,789 miners. The results of their labours, and those of 
the smelter, were as follows :*— 
MINERALS. Merra.s. 
Tons Tons. 
WeRCdiOresr.a cme OOD (D0) mais eel aa OOaT ILL 
(Oo m6 6 6 1 CAMUEET CG Me po ASHI 
906 Cast . . 34,022 
Iron. - + - 128,333 | Wrought) 32,131 
JAVIER Seton Pee Re ioe bbe 2,180 
Quicksilver Ores . 17j;984 i. . =. 923 
Silver aks ZI GO} ait iged Cok 715 
Tin ee ES GOR stipe dew iis cs 635 
Coal ODOM GAS Ba oo al ae — 
Sulphuri@ressesae e2e-7gOn eal ay eae en Ss040 
Mancanesers, 2) 2 plod, SGa cts ssc ents — 
Of the above quantities, the Government mines of Linares produced 
of lead-ore, 3,521 tons; lead, 2,232 tons ; those of Rio ‘Tinto of copper- 
ore, 79,057 tons, or 1,170 of fine copper; and the important mercury 
mines of Almaden, 11,191 tons of ore of Cinnabar, yielding of quick- 
silver, 894 tons. Although Spain produces the largest quantity of 
lead-ores, its produce of lead falls below that of Great Britain, 
owing to the poorness of the minerals, their average produce falling 
below 18 per cent., while the produce of the lead-ores of England 
averages about 70 per cent. 
The Prussian Government has published a valuable set of Mineral 
and Metallic statistics—being an account of the mineral production of 
the States for the ten years, 1852—61.t From this it appears that 
the total value of these products amounted in 1861, to 4,685,000/. 
sterling. The number of mines worked were 2,304, and of workmen ° 
employed 115,341. Notwithstanding the insignificance of these 
returns as compared with the mineral wealth of Britain, it is clear 
that the production of minerals in Prussia has increased more than 
six-fold during the past twenty-five years. 
The latest returns furnished by the French Government of the 
production of ‘“ Metals other than Iron,” show that in twelve depart- 
ments there existed 23 mines in which were employed 3,072 workmen. 
The value of the argentiferous lead produced was 1,545,365 francs— 
and of other metals, 601,623 frances. 
There are few sciences which move so slowly as Mineralogy—not- 
withstanding the Treatises by Dana,{ by Brooke and Miller,$ and the 
* «Revista Minera.’ Madrid, lst Nov. 1863. 
+ ‘Zusammenstellung der statistischen Ergebnisse des Bergwerks, Hiitten- 
und Salinen-Betriebes in dem Preussischen Staate wahrend der Zehn Jahre yon 
1852 bis 1861” Bearbeitet von E. Althaus. 4to. Berlin: 1863. 
¢ ‘A System of Mineralogy ; comprising the most recent Discoveries.’ By 
James D. Dana, A.M. 
§ ‘An Elementary Introduction to Mineralogy.’ By the late William Phillips. 
New edition, with extensive alterations and additions by H. J. Brooke, F.R.S., 
F.G.8., and W. H. Miller, M.A., F.R.S., F.G.S. 
