44 The American Naturalist. [ 
The cerussite from Pacaudiére, near Roanne, Loire, France, is stat 
by Gonnard” to be associated with copper, silver and lead compounds 
pyrite, limonite, quartz and calcite. Its simple crystals present ng 
variety of planes. Twinned crystals are common, and trillings an 
known. A description of the several types is given by the autho 
For sixty years past the same mineral has been known to occur at th 
argentiferous galena mines of Pontgibaud Puy-de-Dôme, but the 
has not been noted in the treatises on Systematic Mineralogy. 
crystals seem to have been formed at the expense of galena and b 
nonite by the action of CO, from the neighboring volcanic vents. 
habit of its crystals is well described by Gonnard". 
Morenosite [(Ni Mg) SO,+7H,0] in green stalactites from the 
of the Breithorn in Zermatt, yielded the same mineralogist” the fig 
SO, = 28.7; NiO = 185; MgO = 6.5; H,O = 46.5. As 
fragment of an ochre-yellow mineral from New Caledonia is a si 
of nickel, magnesium and iron: 
SiO, FeO, AlO, NiO MgO H,O Total 
83.0 185 15 26.3 80 140 = 1019 
Frossard” substantiates the statement of Mallard that the b 
garnet pyreneite is a grossularite and not a melanite as repor fs 
Raymond. Its density varies between 3.375 and 3.53. 
Vesuvianite is reported by Pisani" from Settino in the Rhetian 
Its analysis gave: 
SiO, AlO, FeO CaO MgO MnO Loss Total — 
39.0 143 18 3874 67 tr. .9=1001 
The supposed martite crystals in the rock of Cuzeau, Mont - 
are tabular hematites cemented into octahedra by magnesio-fer 
determined by Lacroix.” 
In the basic clays of Condorcet near Nyons, Drôme, France, are b 
ders of siliceous limestone, with cavities whose walls are lined with bi-p 
amidal quartz crystals, transparent celestite, dolomite and calcite. ` 
quartz and celestite both contain rare planes beautifully develo 
“Bull. Soe. Franç d. Min., xv, 1892, p- 35. 
“Ib., xv, p. 41. 
