1018 
formations or members of these systems in 
different portions of Canada was presented. * 
The subdivision of the Silurian succession 
at Arisaig, in Antigonish County, Nova 
Scotia, those of Gaspé, Anticosti and On- 
tario are included, and are based upon the 
faunas determined by the late Mr. Billings 
and Professor Hall, as wellas from mate- 
rial in the hands of the author for some 
years past. The subdivisions of typical De- 
vonian formations are also given. These 
will form a basis for the classification of 
the terranes in eastern Canada, according 
to latest and most approved methods. 
Acrothyra and Hyolithes—a comparison. 
With a description of a new species of Hyo- 
lithes: G. F. Matranw, LL.D. 
The comparison was made for the pur- 
pose of seeing how far the muscular system 
of one genus corresponds to that of the 
other. The ventral valve of Acrothyra was 
compared with the tube of Hyolithes, and 
the dorsal valve of the former genus with 
the operculum of thelatter. The Hyolithes 
described is a slender species from the base 
of the Paradowides bed at St. John. 
On some Modes of Occurrence of the Mineral 
Albertite: Professor L. W. Barney, LL.D., 
of New Brunswick University. 
Since the closing of the celebrated Albert 
Mines, in Albert county, New Brunswick, 
the ownership of which for a time hinged 
upon the determination of whether the 
mineral which thence derived its name 
should be regarded as coal or asphalt—a 
number of interesting observations have 
been accumulating which havea direct bear- 
ing upon this question. The present paper 
narrates and discusses some of these ob- 
servations, and is accompanied by speci- 
mens illustrating the occurrence of the 
mineral with widely different associations, 
and in rocks of quite different geological 
horizons, e. g., in Pre-Cambrian slates, in 
calcareo-bituminous shales, in gray Car- 
SCIENCE. 
[N. S. Vou. XIII. No. 339. 
boniferous sandstones, in snow alabaster, 
in admixtures of calcite and pyrite, and 
cementing crystals of selenite. The vein- 
like nature of the mineral and its originally 
fluid or semi-fluid condition are strongly 
emphasized. In the discussion which fol- 
lowed, Dr. Ells, Dr. Ami and Mr. Poole took 
part. Dr. Ells places the Albert shales in 
the Devonian System. Dr. Ami argued for 
the Eo-Carboniferous age as shown by fish 
remains and plants. 
Jacques-Philippe Cornutt. Notes pour servir 
aV histoire des sciences aw Canada: Par Mar. 
LAFLAMME. 
Cornuti a publié a Paris, en 1635, un 
volume qui renferme la description d’un 
bon nombre de plantes canadiennes. Tl 
n’est jamais venu au Canada; ses études 
ont été faites d’aprés des échantillons vivant 
dans le jardin des Robins, a Paris. Le but 
de cette note est d’abord de rechercher par 
qui les plantes canadiennes avaient été 
transportées a Paris, si t6t aprés la fonda- 
tion de Québec, et ensuite, d’examiner toutes 
ces descriptions et de déterminer la synoni- 
mie entre la nomenclature de Cornuti et la 
nomenclature actuelle. 
On some Geological Correlations in New 
Brunswick: Professor Baitey, LL.D., of 
New Brunswick University. 
While the geological age of the rock for- 
mations in New Brunswick has in most in- 
stances been determined upon satisfactory 
evidence, much uncertainty has existed re- 
garding certain groups of strata and espe- 
cially those which, consisting largely of 
slaty rocks, border the great central granite 
axis which traverses the central part of the 
province, in the counties of York, Carleton, 
Northumberland and Gloucester. For, 
though regarded originally as Cambrian 
by Gesner, Robb, Logan, Hind and others, 
and subsequently colored and described, 
though only provisionally in the maps and 
reports of the Geological Survey, as Cambro- 
