New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1881-02-01
STUDIES IN LOCAL SCIENCES.
PAPER READ BEFORE HE NEW-YORK ACADEMY Ol
SCIENCES by -. Il. CHAMBERLAIN.
Is. Il. Chamberlain read a DaDer lasr nigh

PAPER READ BEFORE THE NEW-YORK ACADEMY OF
sCiENCEs by -. Il. CHAMBERLAIN.
Is. Ii. Chamberlain read paper last night
before the NeW-Yurk Academy OF Sciences entitled
studied in Local MlneraogY" Itembraced the ident
ication VI singular mineral found in The neghbUrhOod
OF Fourih-avo aud Ninety -sixtG-t, the description Of
ironrUated boudcrs from Brooklyn. and account Of
the gnciss formation OF Manhattan Island
within hny miles OF CITY Hall. the speaker
said, there less four geo
logical formations. White the region across
the Hudson has been faithfully studied. and its
features mlnuttY portrayed, the district on the right
bank has renamed land Of considerable mystery tO
geological students BY certain Investigators The series
IL rocks iouhu here associated with the White Noun
tain system, under the title MOuIalban" Within tue
past year however strong doubts have been raised in
opposition that conclusion by the Investigations Of
the elder Dana who has devoted himself TO most
thorough study of the region under consideration. He
reaches the conclusion that Manhattan Island and West
chester County, Indicated by study OF the
limestone beds and adjoining strata, are one
IN series AMI system Of disturbance with the Green
Mountain - ten: tuat Il IS younger than the ArcLran
system ~ the Ill IN dnd-, AMI 70 be assigned 10 the
sluran age. There reasons for concluding that tie
system originated before the channel -. the Hudson
cut through the Highlands.
form Of SnOuitc has recently been found ia Brook
yu which has been met with IN the lowlands
bog, or meadow ore VS. may imagine student
OF archaeology, hunting FOR relics OF
the battle uf Long Island pckng up what, Tor form
and haTur--. might bc easily tdhen Tor cannon bali
SECOND ~ OF saprlI aspect might suggest
ref ciiuns the stuhbOrnness Of that mcmOtuDle
conn e.. thrd Irismrnt would for
exploded shell. final specimen. slightly
Uut la thape resembling shoe more than an i'm
pIeuent uf warfare. determues the HrchieUlOglst TO
abandon lis theories and leave the field Ia he ithOl
ug sts Tor solution OF the mystery. These specimens
Wrr. INST LOiicrd vacant 1918 III hOllOws and
along gnliir- formed by the rains. The first
impression tia. they were formed on the spot by
drpuslttOus from iefrugnUus waters The enclosed
stones however, ncary all OF ole character
red Sandstone. Pebbles, b1uiuers OF Granlte.
coating. Tie ground II ecyatcd. being the
highest point OF Brooklyn, near Last New York and tine
pt,-rncc I'll icErugnpu~ dt OStts not to
dlsrrInrd IN The nc.gh0Ornopd Ga searching further
the banks OF dart were found 10 contain
similar buulders III cOnsd raOle quantity. The
site 81 Brooklyn covered with dItt TO
great depth. and minerals and rocks brought by ancient
acrr- nom regions o he norm and northwest may Oe
great variety These DOuldcrs represent the
s origin ia waters passing through ferrugnOns STRATA
az VIII green sand ana mari beds. The
carbouc acId, winch holds the oxide OF IRON IN solution.
escaprs the wafer reaches the open air hchce the
u rciuni oxide of iron IN the form of UogOre. In
Nrw Jersey deposits OF the found IN nearly every
part o the STATE. ALONG Llttn Egg Hdrbor RIVER tx
trn,yc works situated Tor the treatment or tue ore.
which In this ucighbUrhOUd IN very abundant
Professor Ncwhrrry OI tnc Columbia College School OF
"Ouf Coast COrals. Their Relations aud Geological