412 Scientific Intelligence . — Mineralogy and Geognosy. 
Philadelphia, Mr L. Vanuxem refers it to the Augite species, 
and names it Lamellar Augite. 
12. Serpentine a distmct mineral species. — Werner long ago 
arranged Serpentine as a distinct species of simple mineral ; but 
Haiiy viewed it as a mountain rock, and rejected it from the 
mineral system. In the Transactions of the Royal Society of 
Edinburgh, mention is made of crystallised serpentine ; and 
Vanuxem, in the Memoirs of the Academy of Sciences, adopts 
the opinion of Werner, and enumerates and describes the fol- 
lowing subspecies of it, under the name Marmolite, viz. 1. La- 
mellar Marmolite or Serpentine ; 2. Compact translucent Mar- 
molite or Precious Serpentine ; 3. Common Marmolite or Ser- 
pentine. 
13. Discovery of Jenite in America. — Dr Troost, on exami- 
ning a series of specimens of minerals collected in Rhode Island 
by Major Ware, found in a granular quartz numerous crystals 
of Jenite, or Lievrite, as it is named by Werner. 
14. Lignite , or Brown Coal , in Coarse Marine-Limestone 
( Calcaire grossiere.) — Desnoyers has observed the following 
arrangement at Vaugirerd, near Paris. The lowest rock is plas- 
tic clay with lignite, containing paludinse, helices, &c. ; above this, 
chloride and sandy coarse marine limestone, then the proper 
marine limestone ; above the well-known bed containing impres- 
sions of plants, there are small nests of lignite ; then the bed 
with lucinse, and two series of short strata of siliceous lime- 
stone, with earths, and then a bed of marly limestone, with 
cerithia, modiolae, planorbes, lymneae, &c. ; then a bed of 
plastic clay, with the same mixture of marine and fresh-water 
shells, and with spathose gypseous veins, and perhaps with no- 
dules of compact phosphat of lime ; then a bed of marl, like the 
preceding under the clay, with the same shells ; then alterna- 
tions of limestone, more or less siliceous, with yellowish or whi- 
tish clayey marl. These last are admitted by Brongniart as ana- 
logous to the siliceous limestone of Champigny ; but this plastic 
clay with shells, forming a bed of from 2 to 8 feet thick, shews 
that Brongniards idea of alternations of fresh and salt water 
lakes is inconsistent with nature. We have always considered 
this opinion as questionable, and are disposed to consider as more 
