1258 General Notes. [ December, 
terior. Varieties of quartz were interspersed in some places, and 
the rock contained a little iron, insufficient to affect the needle. 
The mountains are from two to three thousand metres in height. 
Dr. Carl Ochsenius, of Marburg. discusses, in a recent num- 
ber of the Geological Magazine, the origin of metalliferous deposits, 
and states that his conclusions, as evidenced by extracts from the 
Journal of the German Geological Society, August, 1881, agree 
substantially with those arrived at by Professor Joseph Le Conte, 
and put forth in the American Journal of Scicnce, July 1883. To 
the words of the latter, “thus then subterranean waters of any 
kind, but especially alkaline, at any temperature, but mostly hot, 
circulating in any direction, but mainly upcoming, and in any kind 
of water may, but mainly in open fissures, by deposit form metal- 
liferous veins.” Dr. Ochsenius would add, “ if they contain sufficient 
quantities of ores in solution,” since many alkaline and saline 
springs: and waters form no metalliferous deposits. He says, 
“ Metalliferous deposits are in fact constituted of metallic particles, 
extracted from rocks by mother liquors, either with or without the 
operation of carbonic acid, and accumulated in fissures, cavities, 
or depressions. Mineral springs found in many metalliferous 
regions evidence the former activity of mother liquors. M 
W. T. Blanford states that it appears doubtful if the seci 
formations of India can be accurately classified by means of the 
uropean subdivisions, and that he believes that the European 
classification can only be applied as an artificial scale or renee 
of comparison. He advocates the union of the Cambrian an 
Silurian, and considers the Devonian-Carboniferous-Permi, = 
' forming a second main division of Palæozoic. “ Permian : 
not occur in Asia. In the Indian Salt Range section, the wit 
series of the Carboniferous or Productus limestone series sa = 
more Triassic forms than the Magnesian limestone of Europe. in 
Rhetic he considers as the upper member of the Triassic ya 
and advocates the Tertiary classification recommended by es as 
German and Swiss geologists, viz., the union of the OO gene 
the Eocene, and the grouping of all the higher strata as a) has 
or Mollasique——The Permian (as commonly pases shows 
recently: been roughly handled by the Rev. A. Irving, W x ee 
that the Bunter and Mergel-Schiefer are Triassic, and ar so-called 
ded by Gi í ainder of the s€ 
garded by German geologists, while the rem Rothliegende 
Permian, consisting of the marine Zechstein and the Ko 
. 
(a fresh water and land-formation with included eruptive This 
parallel with the Zechstein) form the Dyas of the 
Dyas may well be grouped with the Carboniferous. oun 
Furassic.—The stratigraphy of the middle Jurassic = separate 
of the Paris basin is elucidated by Wohlegemuth 1n middle and 
issue of the Academy of Sciences of Nancy. The i s, and 
upper Bathonian, Callovian with Ammonites athleta, tinum and 
macrocephalus, Oxfordian, Corallian with Diceras 47 
