1866. | Mining, Mineralogy, and Metallurgy. 431 
“Greg and Lettsom doubt whether or not Wulfenite may rank 
as a British species. In Thomson’s ‘ Mineralogy,’ vol. i., p. 565, we 
find the following remarks on a specimen (a single specimen) in 
the possession of the Stockholm Academy':—‘ It was ticketed lead 
spar, from Mendip, near Churchill, in Somersetshire ; it was chiefly 
carbonate of lead, but it contamed two portions of a yellower colour 
than the rest, which attracted the particular attention of Berzelius.* 
One of them being examined by the blowpipe proved to be molyb- 
date of lead ; the other portion was an oxychloride of lead.’ 
“This, so far as I know, is the only published record of the 
occurrence of this substance in Britain. Lately a new pit was sunk 
for some thirty fathoms at the ‘South of Scotland Mines,’ at Lack- 
entyre, near Gateshead, in Kirkcudbrightshire, and amongst many 
interesting minerals brought me thence by Mr. James Russel, of 
Airdrie, there was a single.specimen of the molybdate. The asso- 
ciated minerals are galena, carbonate and phosphate of lead, and 
cupreous calamine ; the molybdate occurs in well-pronounced and 
unusually brilliantly polished crystals of about } inch in size; the 
crystals are thin, transparent, and bright yellow. The pit in which 
this specimen was found proved unproductive, and has been aban- 
doned ; there is thus little hope of others being obtained.” 
Our Mineralogical notices would not be complete without a 
record of the following papers :—“ Uber den Titanit im Syenit des 
Plauen’schen Grundes,” von P. Grosh.t—*“ Uber der Natur der Sili- 
cate,” von Dr. Mohr.t—“ Neubildung von Schwefelkupfer in ver- 
gelbtem Papier alter Biicher,” Kerner.S—“< Mineralogical Corre- 
spondence.” || —“ Kondroarsenit, ein neues Mineral.”[——“ Alloklas, ein 
neues Mineral.”**—“ Uber den Klipsteinit, ein neues Mangansilicat,” 
von Prof. Kobell.+{—* Preisaufgabe aus dem Gebiete der Mine- 
ralogie.”t{—* Mineralogische Studien,” von Breithaupt.§§ 
M. Daubree has published ‘ Expériences synthétiques zelatives 
aux Météorites. Rapprochments auxquels ces Expériences con- 
duisent, &e.;” | || and M. Boussingault writes,1 “Sur la nitriére de 
Tacunga, dans |’ Etat de I’ Equateur.” 
METALLURGY. 
Although there are several patent processes, of more or less 
merit, which may eventually require a notice from us, these are all 
* “Kong. Vet. Acad. Handl.’ 1823, p. 184. 
+ ‘ Neues Jahrbuch fiir Mineralogie,’ 1 Heft, p. 45. 
} Ibid., 2 Heft, p. 181. § Ibid., p. 227. || Ibid. 
7 ‘ Journal fiir Praktische Chemie,’ No. 1, p. 60. 
** Thbid., No. 2, p. 125. tt Ibid., No. 3, p. 180. 
ji ‘Oesterreiche Zeitschrift fiir Berg. und Hiittenwesen,’ p. 102. 
§§ ‘ Berg. und Hutten mannische Zeitung.’ 
\| || ‘Comptes Rendus,’ No. 5, p. 200; No. 8, p.. 369; No. 12, p. 660. 
\] ‘ Annales de Chemie et Physique,’ Mars, p. 358. 
