The New York herald., 1851-08-21

the tessslated appearance Of the tortoise shell have
openings where there wsslesst cohesion.
Prof Henry then gave illustration Of experiments
which he had made himself with gold aud other metals
He had placed lump gold piece Of iron and then
put 1t IN furnace but he did not hnd that IL permes
ed He subsequently, inquired OF celebrated worker o
metals Ia .ler, under stood what results he nsd
perceived from similar process, and he said he had
often the silver disappear. The experiment was
tried in his prof Henrys presence ana sure enough
the silver apparently and the copper surface
alone appeared He (the Profssor) immediately put 1t
in galvsnc battery, and the silver reappea'ed, which
showed that it did dissolve but merely went down
below the surface Of the other metal The gentleman
ferred greatly astoDshed and thereupon declared
that he sd known the fact before it would have saved
him many hundred dollars (Lsughter)
EVENING SESSION -sEcrIoNl
Professor A. d. Bache presiding The following COM
muncations were made reports Of which shall subjon
In my subsequent corresponds nee
MATHEMATICS, PHYSICS. CHEMISTRY.
Experimental Researches. tending towards an Tn
Provenent In the Telescope, by Prof Alexander c.
On the Atmospheric Envelopes CT Venus and other
Planets, BY Prof. stephen Alexander. of Princeton.
Observations on the Freezing of Vegetables. and on
the Causes which enable Plants endure the
ton of extreme Cold by Prof John LIE Conte, OF the
On the Clouds and Equatorial Cloud-rings of the
Earth by Lieut. Maury Superintendent of the Washing
EVENING sfssloN-szC rIoN 2
GEOLOGY NATURAL HISTORY.
Doctor Hitchcock presiding g-The following communi-
cations made. send sou all that possibly o.,
and win forward others as soon as possible
Notice Of several American Minerals by Prof Charles
On the Meteoric stone OF Deal New Jersey which fell
August Is. 1929, by Prot. Charles u Shepard
On the Probable Data OF The Fail OF the RUNS Noun
tain fs C metoric iron. by Prof Charles Shepard
On Chalcodite mineral species, by Prof Charles
U. Shepard.
Shepard.
on THE BIOGRAPHICAL psrRiRcrros ANIMALS CALI:
FoRSIA, JOHN L. NJ. d.
This paper contains the results Of the authors Obs
vstior made duriog journey in California, undertaken
for scientific purposes He first dra ws attention to the
that in early spring the beauty variety of the
flowers is great give the country the
Of well cultivated garden But the peculiarly of the
vegetation is in the distribution Of the species Parcu-
lar plan confined limited districts, thar
slant variety IS presented to the traveller almost from
day to day:
wished 10 ascertain whether this novel feature
tended TO the animal kingdom, aud upon directing his
attention TO this point ne a.cerned the remsrkaoe
fact that limited number of insects are found at any
point. Thus about 200 species Of coeoptera and
somewhat smaller number of the other orders combined
found at single locality in three months period
which ould have yielded three four times this
Der in the Atlantic portion Of the United States.
ON f.mosps 70 secoha iocarty TWO OF three
fersnt set of species among which the commouest kinds
of the former locality may not be found the species
&c two adjoining localities not exceeding eight
percent This /. the more remarkable, since on the
Atlantic side Of the continent common species und
from New England to the Gulf Of Mexico These facts
the curious they cannot be referred TO eli
mate other physical causes The author cites various
Piles TO sustain his views several Ct the results Of
which folows:-A comparison ef the animals Of
Caor MIA with those C the Der portions Of the con
dsproves the idea that similar physical conditions
will be accompanied by similar animals.
California. sthough peculiar BIOLOGICAL district be-
lorg to the general region Of the cOntne and Is SUBJ
divided into a number Of well defued sub districts.
The local distribution Of few species extends 10 the
islands Of the Eastern Pacific. that this must De
gprded as the characteristic Of that regonas the wide
range of many species is the peculiarly Of the Atlantic
side OF the continent.
These facts be accounted for except
upon the principle of design well In the distribution
Of plants ard animals, as in their organization.
ON the Istmorphism of the Chemical Compounds com
prised under the mineral species, Tourmaine 5y Prof
James ID Dana OF Yale College
Points in the Economy Of the ccnia sssaiecR. bear
ing upon the Plural Origin and Epecis Local Creation o
the Species. by DR.. W. J. BarDett. OF Boston
On he Existence Of Duyial Agcrcss during the ee,
er Geological Periods, by DR. h b Hough, OF New YORK
Among the recent arrivals az the Congress- Hall are
Pref Hsekl-y. New York; Prof Caswell Proyienc- DR.
John Archer, Rev. Mr EGIbEot, Prof J. d. Dana. Ho
msr Codington anu family, Va Hon H. c. seymour
Prof J. lie Conte Major lie Conte, Pro; w. Rogers,
Prof Gillespie. Hon D. Horgan. Rev p Deyn, Judge
surges, Georgia. Captain Hay Doctor Young and several
others *