New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1857-08-21

rrpesfones and Dr0 tesetcfe eehNsea ivf ~ cohuJ
In Comfy, at s,Dcst the hight Of he! swsli'h coA'
cspglcneys'e
Ire sN views q 10 The thickness OF aaih1seife coa1
,.,t, op6 tbe nspOyerirhment OF the w eeteTn oi'o
pinous rsIies have been incorrect The numb. o.
keas in given vertical speee is 20 greatf N ne r.'
thar in the Wet; The intervals are snbs,ahnaiiy VIZ
cane; but more valuable fact is that tho 'eiaaye
vsiute Of the beds amcng Themselves msin' ~
the three sections exhibited. We lave sDou' w iso'
Of lock ard hike OF ten noticeable beh-, oes''. ".
merous email cams Of coal, &c. Many other iac's
nC,Dg prove the identification Of Inc 'sna
W,e;era coal beds we're detailed, ard The professor
Gle. ed By stating hs conviction tina: we are deshed
10 zee beauiiul panorama Of hamonze' scclIp', ~,
TIE coal formation, slowing the etsen'ia' is
and reIsis cbcy Of the lew beds Ut eoa!, nuns cay
and ,s1d which co, sti;ute q nearly equal hckness
throughout, and producing upon u an slee, aha'
brou- with that produced upon Is oy me r"iseo
7Oic seres Of FOL nations whole, except ~ we one
point Of total thickness, which IN inc i.'aso ,e
series Gs whole undoubtedly dee'hss ropuiy
westward but in the coal measures 'chsh 7ePAa'eiy
does not.
Prof. HALL said that he had c:Hss lately 10 com.
pare the osris of the intsstrUiiled y, INC
coal II .asures from Penny wanna, atd 10 hau oceh
convinced that ia the r,gicn e1tbiihed ieIe were
E rails by which their sge could be s.V'SetoIlJ us'
I. mined ell! ccmp sreG with thOse Of the West
Prot. SWALLOW u llissouu claimed ina' IN ue Geo'
logical Report. Of that State the 1cs hhu nst oten
advar ced Of identifying the oarbobieroas nnestones
by their fUssils.
MATHEMATICS AND PHislos.
The NEE irc being called to order BY Pro-. BAcnE,
PId. W. b. Jack, of Fredericton, y. H., was caE.d
" the Chair.
mon All improved COLetructcn Vi RuhuIhOiIs In
auction applrs:us--an instrument Illustrating ID
b aptiiul nbnner the connection betWeeh e!ecuo'hso
uetism ara FrSIknic electricity Inis ePparasus y
tie result Of the labors OF Farsday henry &C. NJ
Ritches chief improvement CONSISTS III new nlethod
OF winding the vie that it shal lie IN discs a. right
angles to the ais Of the haix instead OF yiBg IN cor
centric hollow cylinders re usual lIis fehd'fs IL
possible 10 pse muh greater quantities 81 wire WIN
ont the danger o. accidental discharge thToh Inc In
,uIatI = separation Cf the layeis He Also produces
tie int, ,ruptions meet aDic6y by ratchet wheel ana
splirg hammer, instead OF by an electromagnetic
VI l,h these and other minor improv eincnts he has
obtained spalk Of IT, inches in length The quantity
Of cecttict, in these sparks il enormously greater
iban that obtained by ficuonal machines Mr..
Richie aCy set Ere 10 paper IL the presence OF Inc
section without the Intervention OF the Leyden jar
With the jar tine sparks although IN fuI dayhSht,
were too bright for the eye TO rest upon In reply 10
n question OF DIR. Hare. Mr.. Richie stated that the
rnenls were hot tebsby affected by the moisture
Of the air. Even the Leyden jar attached 10 the IN.
rtume TO work perfectly well III tne dampes'
weather.
D1. HARE then gave brief popular explanation
of the 1henomela Of electric polarity AID the points
oi its difference iiom magnetic polarity. Being re-
Guested by the Chairman TO make his remarks bear
upon the PAPER beCie the section, he prsceeded ~
seak upCn the general principles OF polarity by n-
ouc,it H. and Of Tie mode in which the internal polarity
OF The magnet differs from the superficial polarity OF an
electrified bcOy.
M-. SHrKwiy. of the English high School, asked
whether there could not be exhibition gwen OF the
splendid experiments by the Instruments.
Prof LOVER, speaking Of the value OF the Instru'
nent and Of the sendor Of the experiments that may
be tined with it, stated that frsciass instrument by
Ruluikoiif in his possession could Lot make spark
e al 81. inch La
Mr. Richie deserved well OF the scientific world foi
this exceedingly valuable addition to their means OF
electrical experiments.
On motion If Pref. OLusTRAp, the Section voted to
accept AR. Ritcbies oDer Of showing the powers OF
bis instrument on some convenient evening
Prof DENIsOS OLMsTKAD offered the next paper
on the canes of the Aurora Borebs. lie considers II
CO snit its origin, not terrcsuia and predicts thai
il will be found to be also secular In ia variations ano
that vc'y brilliant displays need not be expected IL
this latitude before 1870 $50. He thinks II con
nected with the zodca light The Professor reviewed
the theory that the lights electric sparks at hisl
attitudes passing III direction parallel to the dipping
needle lie COZ sidered the theory Of Blot approached
more ally to The truth, .hough I! whole improb
able. He would modify ii by surprising Bots Ter
rugint ,apor to come from the zodiacai night Inc
Piofes,sor then noticed the views OF D, Hare, which
called out little hy-pay Of explanations and
compliments 10 the learned Doctor, from whom
the Professor stil begged 10 offer lie brought
forward difficulties i'll the way OF every electrical Ca
tote Granting that the Aurora has magnetic proper
ties aid some electric appearances, he dd Lot think II
has electric origin, az eltcuiclty VIII not accoun'
for several phenomena, especially for the pcIodicty
Mr. CoFFiN Of Boston, by permission, gave short
account Of the effects OF an Aurora upon tae tele
graphic wires.
tric powers and rot electric onSin, in the Aurora
cussion i'll which Prof Olmstead rpCkc of the AuIora
and Dr. Hare Of electricity, aud each thought the
other was srcakng Of the came thing as himself
Hence the Discussion was not eminently ednyins &c
the besrerp Dr. Hare then went on % argue at some
length the probability prior! that there shoaid oe
electrical phenomena which should exactly stnulafe
the appe of the Aurora and that these appear
aLces should occur the dry atmosphere OF high
latitudes What more natural and unavoidable in
ference than that the Aurora consists Of these cleo
trical phenomena. He then went on TO show irou
Faradsys experiments that these electrical phen
omebe will produce magnetic effects, and concluded
by suggesting the possiointy Oh electric cEcAaf5e'
from planet to planet.
After rome wild remarks by member, whose name
our reporter did not CATCH to tie effect that the earth
rotation or its axis might produce frc.OnA electr
pefintendent OF the United States Coast Survey
Ii is well known that when bay opens TO the tide
wave the hight OF the tide is greater in the head Of
the bay than at its mouth. discussion Of the tides
Of the Atlantic, includng, by the kindness Of the
New-Brurswick, Cape Breton and Newfoundland
will show the law Of this increase. He would not al.
tcipste Capt. Shorthand and Admiral Bay yield in pub
li.bing their results, but simply used them partially
by their Kindness, ~ complete his own. After men
Gopng, with his characteristic love OF justice the
vices .; his assistance he proceeded to explain his
maps and diagrams. 1t appeared cOnclusively tia.
the law Of rise IN the bays Is beautifully obeyedin the
three great inde ntstons Of our coast first the grea,
South Bay, between Cape Hattens and Florids;
second, TIE great hiGde Bay between Cape Hatteras
and Nantucket; and third, the Eastern Bay between
Nantucket and Nova Scotia. The Eastern Bay il
modified by the Nantucket and Nova Scotia Shoals,
al also, probably, by the Banks Of Newfoundland.
In either OF these great bays the hight Of the tides
may be readily shown to depend upoa the position OF
the place Of observation in the great line OF the coast.
Prof PEIRcL mace some remarks upon the grea.
value &C th.se observations in Correcting the ma,he-
naticsl view OF the whole phepom.sa Of the tides.
Il 4lat4L L.. 4