The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1853-08-01

peculiar circumstan ses these sandyAenos would a.
sume the character Of the quarts roek. He doubles
that the san tstOne and coogloUerate coWd nave
been derived from the so-csed primary rocks OF the
tended Of the same age the untltersd rocks ofhe
siurian and carboniferous system. peeoIe WAS
shown Professor H.. which was claimed " have been
fattened by pressure before indurst'on, but which
he was satisfied owed It's form to its original cleav
age and the two Fat faces presented evidence of the
cleavage surface but partially worn. lie had never
seen pebble nattened after deposition; the fatened
surfaces represented resting on shale; were all cor
rOded a II from solution after deposition, not one OF
them presented on this fiat face the smooth and
condition Il other pebbles or other parts OF the
same pebble. He denied that there was any similar
ity between these pebbles and nodlles OF hlnt In
chalk. Pebbles frequently fractured at the time
Of subsequent their deposition aud frequently
cemented together by silicious matter in solution
and percolating through the rock. Professor
Hall remarked that the views here advanced and
the cole cton OF specimens having 80 many different
origins, presented as OF origin not only strik-
ing at the foundation Of all our preconceved notions,
hut against facts. and their Interpretation given by
all ge0lORsts for centuries.
After the asse milling Of the session in the after
noon
Pof BRArNERD expressed adesire to have the sub
ject farther discussed, and remarked, as Prof Hall
bad expressed conviction that some of these sill
cOus formations were due to slick in solution, why
might not all be due 10 the same cause? He here
repeated some OF the arguments of the morning,
remarking upon pebble when minute crystal OF
quartz had formed upon the surface. This he at
trbuted TO the same cause, and to the Same time
the formation of the pebble He farther insisted
upon his lines Of pebble without admixture of sand.
The ripple mark and other markings, he appeared
to consider OF small Importance.
Prof. HALL, in reply, said-That although there
were one or two points to be noticed, yet be apollo
giscd to the section for consuming time in subject
OF this kinds but since the paper had been read and
wonld al pear having been read to the association.
it ought not to pass without reuiaton, and for this
reason he would speak. He would barely say, how
ever, that long Prof. b. interpreted facts and
phenomena differently from hims' and from all
other geoopists there was little hope OF understand
ing each ether He sad that Prof. b. ought to know
that The ripple marks and other phenomena exhibit
bted could not take place except in mass Of sand,
when the particles were 10 move among themselves.
and that such a condition could Eever snpervene
upon mass of slick preclpitated from solution The
absence fossil Shells which had been insisted was
not true, for in southern New York. and in Penn
thickness Of this conglomerate where fossil shells
were abundant. The valves were opened, and the
interior filed with sand and pebbles. The lines OF
pebbles claimed by Prof B., to be without admir-
the interstces in all cases. He here endeavored to
show Prof B. the difference in structure bew the
slick Of flint and hornstone and these pebbles Of
quartz Prof. H. concluded with some general
geological periods, and the condition Of quartoze
siIlcous deposits in formations Of different ages
and origin.
! noticed many new members since yesterday.
Among them are Prot James Hall, Albany; E. B..
Hunt. O. s. NJ, Eng; Prof. A. Caswell, Providence |;
Prof Stephen Alexander, Princeton Pr,f Chas.
Hackley, Columbia College, New York H. STAINS
bury, U. 8 Eng. Lieut. Chas Wilkes, Washington !;
Prof 0. N. Mitchell, Cincinnati, O.. PrIf Coffin,
Washington Mr.. Chas. Wentworth Dixie, and Prof.
John Wilson, London, England who are the British
Commissioners to the New York Exhibition, and
Hon. VIM. Mitchell and his daughter. Miss Maria
Mitchell Of Nantucket You will recoIlect that Miss
Mitchell is distinguished the niscoverer Of comet
and was elected member Of the association al the
New Haven meeting. Sic is not rela ed to Prot.
Mitchell Of Cincinnati.
Thus lar the meetings have been fnll, and very en-
teriaining The attendance Of prominent members
is very large. The number OF papers are very great:
while there appears hearty good will among the
members in disscctiDg one another, as III the case
Il Prot. Hall with Prof Brainerd you perceive by
ny report and DR.. Gould with the less distinguished
Mr.. Vaughan of Cincinnati. THIS is perie lily right
Tie association has hitherto been flo ded by spur
GUS papers, They have not been sufficiently chal
lenped by the Committee Of Censorship and Is long
us The committee is forced for waut of time to fail
in this, it will become the duty OF members At the
time when such papers presented 1t Is supposed
that the blisbed proceedings Of the association in
dCGte the exact condition OF science In the country,
and that whatever is printed In the vnime IS right
thus much error has hitherto crept into the volumes
some OF the grossest errr 10. have never heard SO
much discussion at a meeting. The members seem
dttern iIed to view things, and men, might say,
eltMel tally.
The meetings have been graced by the beauty and
talent OF Cleveland, and also by the families of a
large Irnber of the visiting members, who are at
taced by tie Western tour to this beautiful city, aud
tie doings Of the association
thus concluded the proceedings Of the forenoon OF
tie second day Of meeting. I. Il