The Indiana State sentinel. [volume] (Indianapolis) 1868-1895, 1878-10-16

color of the wine is natural il will resist the
acid for days but II 1t is artificial ii will dis
appear within an hoar and sometimes IN a
few minutes. Regarding the chemical &C
ton of wine upon metals with which it may
come IN contact, Mang EN- says that II the
quantity of castiron dissolvsble in wine be
equal to 100, in the same time there will be
97S7 of wrought iron dissolved, 90 07 of zinc,
8 26 of lead, go of timed iron, 1.59 OF tin,
0.72 OF bronze, 0.46 of copper, and % of
brass. The practical lesson of these figures
is obvious.
The amount consumed by different coun.
tries of some one or other OF certain indus
trial products bias occasionally been regarded
as an indication of the degree OF civilization
to which the various nalonalIties have at
tanned. II the quantity of paper used be
taken as determining the advancement OF
people, citizens of this country stand high
indeed. From the catalogue of the German
paper exhibition, which opened last month
al Berlin, il appears that for each OF the
80 600. 600 Inhabitants Of the United States
there are 30 pounds required annually;
for each of the 100000 of Germany,
1872 pounds; for each of the 49,
100000 of England, IL pounds; for
each OF the $1,000 600 OF France, 1872
pounds; for each of the 36,000,000 OF
Austria- Hungary, So pounds; for each OF
the rs ,000, 900 of Russia, 1.9S pounds; fer
each af the 2S, 600 900 OF Italy, 30S pounds:
for each of the 100000 of Scandinavia, 1
pounds; for each OF the s, 500, 600 of Belgium,
III % pounds, and for each of the 2500,00
of Switzerland, Is SO pounds. Other statis-
tics set forth that 600 600, 600 people employ
Chinese paper, 1866 900 900 European paper,
and l30,0O0,000 Arabian paper. Leaves,
bark, and wood are still written upon by
1000, 600 OF the human family, and $50,
600 600 do not write upon anything. In this
paper exhibition at Berlin, as well as in
other similar industrial collections In Ger
many, the useful is kept strictly in view In
preference TO the merely ornamental.
The address OF DR.. William Spottiswoode,
as president of the British association, at the
recent meeting in Dublin, was devoted
mainly to plea on behalf of the
mathematicians for the study OF those
speculative methods which are thought TO
exceed all reasonable limits, namely imagin-
aries, manifold space, and non-F Lrlidian ge-
ometry. IL ~ questionable, howe ye' whether
auy bnt those already we'll acquainted with
these processes followed the explanations
given by the learned president with any
degree of pleasure or profit. A
useful and generally intelligent abstraction
OF what he set forth Is, from the nature OF
the subject, impossible; but IL Is consoling
10 find that, although the pure has out
stripped the applied, mathematics can tell
us nothing beyond the problems she specific
limit, but there she stops, aud upon the
great region beyond she is imperturbably
silent" There is room in the world OF sci
ence still for men like Faraday, who do
something else than machine work In deal.
ing with physical problems. DIR. John
Evans In opening the geological section, re-
viewed some Of the salient pecullariues OF
the geology OF Ireland, as compared
with those Of the neighboring island,
noting the inference that the appearance OF
man IN Ireland IL far more recent date
than that OF the human occupation OF Great
Britain. He summed up also the theories OF
physicists regarding the grand climatic
changes in which the glacial and intergacial
periods give evidence; and speaking OF the
progress OF paloontoloqcal research, paid n
we'll deserved tribute 10 the valuable discov.
cries OF Professors Marsh Leldy, and Cope,
In North america. Professor Fowler pre-.
sided over the department Of zoology and
botany. He showed the advancement made
in biology during the last hundred years,
the gres. influence OF Darwin Ia breaking
down tn, old artificial barriers OF classified.
ton, and the necessity Of some kind OF cen
trail judicial authority for deciding doubtful
points OF geological nomenclature for work.
ing naturalists.