The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1856-09-07

found LETT eYeo aia rignt handed, right eyed In
TO solve this point had recourse 10 one who was sk
black NTH snd who used his lett hant exclusively
WELDING The hammers but n this also happsn.
in those Of rgat handed persons that the right
took precedence Oi the lett and the supposed unison
action did not exist Thus far the visual direction
with distant object has only been considered:
thls point az be examined stu tuither both IN RET
ence 70 two remote objects and 10 the extent OF ra
vhen look through nm opening. III surface OF cd
siderable extent, q board foolf wide or more,
placed at moderat distance from the observer, for
sixty seventy feet and this surface - proect
upon the wall OF building at some distance behind
bnd that the space the building which the board
ceals is not, in the OF object limited by
right ey c. but is determ ned follows-A line dra
from the right eye to the right hand eige Of the board
continued TO the wall, hyes in the normal state of vis
the right hand limit Of the concealed portion OF the
and a line drawn from the left eye to the
hand edge OF the board, and produced TO the WI
determines also the left hand limit OF the hidden surfa
for having fret projected the board upon the "
with both eyes dno that upon cs sing the right eye
viewing the board with the le the right hand edge sh
to the right, while the left nand edge Is unchanged In
sition and that when the right eye Is open and the
closed the left blnd edge shifts TO the lett but the OF
cdgekeeps its first place. When, therefore, both ey
are open the right controls the visual direction OF
right edge of the I'd and the lett the lett edge.
fact Is sil further proved by first viewing tie object
each eye and then with both. The horizontal visual !
gle, therefore, under which the surface i seen, wi
botn eyes ara open, is less than that under WHOM Is
held with one eye, by the amount OF the anglo formed
drawing lines from each eye OF the vertcol ed
different rule appears TO obtain, in respect 10 the he
zonai extent OIL view that occurs when gaze thror
large opening. as win low upon the landscape Def
US. BY experimenting in the way already mcntione
lind the limit OF vision to be thus determined
drawn from the right eye TO the left hand side Of the
dow and produced onward, gives the position of the
band boundary OF the landscape, and another line dra
from the LETT eye 10 the right hand side CT the wind
determines the right hand boundary Of vision BY &C
pairing these results with those Immediately preceding
appears that when landscape Is observed either thro
opening, or partially obscuret by some interven
object. botn ey mpoyed in Gxng the limits Of
sion but in different way, yet in such manner tina
greater extent seen with two eyes than with one in
hrst case by increasing The Visual angle OF the la
scape ar in the second by reducing tie visible an
OF the obscurng object TO a minimum.
Then followed paper
ON THE WATERS OF ct. LAWRENCE AND OTTAWA RIVERS
sTERRy HUNT GEOLOGICAL SURVEY OF CANAI
The river st. Lawrence consists OF series of g1
lakes, separated by shut channels and Abe conseque
is that the water, purified by subsistence in these bas
Is, dDlke most Other great rivers, at all times transpa
and nearly free from suspea AIDED matter. Tho same
true OF the waters Of the Otta but this latter
flowing for the most part through forests and drain
vast marshes, holds in solution large proportion OF
ganic matter, giving it an amber tint, which contrd
strongly with the clear blush green color Of the St.
renee. The waters Of the latter principally der
from paIozire region, while those Of the Ottawa /
for the most part from an area covered by crystal
ayoic rocks.
just above their uncture and towards the end Of win
before the melting Of the snows. The ST. Lawrence d.
tans in 10 600 parts, l.e1s parts Of solid matter
consists OF carbonate Of lime and magnesa, portions
chloride and sulphaics, and carbonates Of alslies,
acid and large amount Of silver@equs to o 81 parts
The Ottawa water yields for 10 600 parts GOT parts
sohd matter Of which O. 5S4 parts are fixed. The Ing
dents the those Of the st. Lawrence, but
proportion Of car bonates of lime is smaller and the u
much greater, equal TO 0.H6 parts. The chlorine
eulphuric acid, nearly sufficient 10 the case Of the
Lawrence 10 saturate the alkAlies, founi in sma
proportion the Ottawa water, where q large portion
the alkacs appear 10 exist combined with an orgs
acid and are converted into carbonates by ignition
nc IN ha eoa I'M o1otta lee
large, Is might be expected from the dccompositio.
fespatbic rocks which have provided tina soluble u
amount OF soda salts Of chlorine and sulphuric acid WI
Characterize the Sc. Lawrence. The large amour
silica which-which is probably always present
potable WATERSHEDS hitherto been overlook by
chemists except ainie Claire Devile but IL of great
portance in chemical point Of view, indicating
during the slow decomposition Of mineral silica
the influence OF carbonic and organic acids the silica
setfee in asolube form, which may afterwards play
important part in the siicdcaton OF rocks AMI fossils
the sediments OF lakes and and helps greatly 70
plain the iertilzing action Of irrigation upon cGlv
lands.
The section then adjourned.
SUBSECTION OF METEoRoLoGY.
The nrst paper read here Was
ON THE TyruooS rs, 1854, AT TnE Eoyrs IsLN
WITH sKETcH or BARoNETIuc Curve non
Or OTHER CYCLONES: ~ JOHN RopiERs; UNITED 81
NAVY, COMMANDING UNITED STATES SURVEYING EXT
ZION. COMMUNICATED Ky W. G. REDfiELD
Commander Rodgers states that out OF his exT
ence he Ia . believer in Mr.. Kcdfeld's theory OF hid
canes, and that this theory had enabled him 70 .
storms into whi,n be would not have been wliu
have been involved. On Septt mber %, 1854
was In the China sea, in latitude "a degrees
minutes North, longitude 1i9 degrees IL minutes Z
The weather WAS threatening, the ship standing to
southwark, with cross and violent sen, and squat
wind, increasing IN frequency and force. He says
Iconsdered hiatt cyclone before and that sh
avoid Us force by sailing away from ~ We then stood q
rated AZ the BONN Islands Oct Is 1854 we had iyph
The harbor OF Port Lloyd Is formed by the OF
height Of twelve hundred feet. You viii perceive,
The violence 81 he wind. yet blew awfaliy Il srippc
the leaves from the trees all vegetation bghted,
destroyed by
The evening before the hurricane the surf bca. n
heavily upon the mouth Of the harbor than had
IL Had We been at sea, have little do1bt but that
should ave known OF Its approach. This storm Is
described by Schonborn assistant astronomer boa
Captain Rodgers was then In the United States ship
cennes, and in CON man OF the United States Surve
Expedition. Mr.. Sconborns valuable paper Is accou
MED by accurate deneauon Of the fall snd rise Of
bar ometer In this cyclone, shown by more than
successive and careful observations. The barometer
fell from 20 % TO IS Is The duration OF the baron
oscillation was thirty SIX hours; that OF the gale
twenty two hours The wind In this cyclone vecred
N. y. by f., through q. to W. s. W. being y. g. r.
the barometer was at It's low est point, which was %
N. As 10 lul or remission occurred at that period,
shows that the path Of the storms centre lay
Of Port Foy and that It had then nearly completes
recurvaton. Commander Rodgers further says
We had gale on Nov 9, 1854, m lat % deg % North
l43 Geg 10 East, winch uOnrhf upon the edge
ypboon. We until had satisfied myself Of is ch
ter and then hove the ship the sarboard tack,
ing from We soonrased the barometer and improved
weather This also described IN the paper of Mr.
born In the steamer John Hancock which comm andct
May ~, 1854 upon the verge offs typhoon The
not violent, but the was peculiar. rising up
sharp and running In every direction bunetng the
weather quarter at remarked 90 the officers
that felt upon the edge Of a yphoon. II
me. however uneaSincss, as concluded we be
H. and that keeping the vessel away would increase
lance from Il. We steered OF nj once in fresh squa
about fifteen minutes and then hauled up 10
and with fair wind expressed wish 10
how any vessel some two hundred miles north and
Of us was faring
This curiosity was satisfied BY The accompanying en-
from the logbook Of the British ship Harkaru.
The ship here mcnuoatd ty Commander Rodgers
large and stauneh India man, which had encountered
typbocr, on the date above mentioned, IN LAT 15e NJ
112e 20 r. II commenced At EN.E. passing 500
NE, and increased 20 terria; hurricane, which dsn
ed the ship. About 80 p. NJ. II fell calm, and the
meter ttood as low ~ 2750. Al 3P. NJ without
ing the wind came out al N w. In q most frighiful q
do, vcerng subsequently TO west and south west
escape OF the ship frsm laundering Is ascrbed b.
captain 10 her beng then upon the port tack. Com
der Roe, did well in avoiding such tempest II Id
commencement OF the gale. when the barometer
minced falling rapidly, the master Of the Husaru
put bis ship on the starboard ack and stood OF nom
centre path OF the cyclone, he would then have
no damage Many severe lessons OF this practical
have been given TO Bavgstors.
Then followed another paper by Mr.. REnyIKtp ON
wBrmwISD TORNADO voRncss.
spiral rotstion constitutes the essential porto
~l.l L.. 4. 49,