New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1845-08-27

compared win the RATIO 80
stated by Prot. Gouraud, and
found to be correct
There may boz some. perhaps
who doubt whether the ratio
here stated j. correct in al ~
figures. Tan C0liel who wrought
> : = out with incredible labor. the fret
fouy figures. proud Of BIZ
work that hy hi- order they
! inscribed on biz tombstone In the
. Church at Leyden Improved
U methods Of calculation have
: ! : y bed subsequent mathemaiicar-
M e~tend the ratio IL j. said 10 nearly hundred
places | have in my library perhaps dozen books
in which this ratio given IN some OF them to nine ami
in others to lJ4 places and believe may say that no
two of these which extend these hgure 10 the iOh place
entirely agree Think know one or two Of my pupils
who will examine this famous number ascertain when
of the numerous copies il correct However, a. mere
example Tor Mnemonizaion the hgures az SET down uy
Prof GOuraud are good as any other.
/ will now however give number extending 10 2i
places Of figures and any person who will have the pa
Hence undertake the fedioas but not dn'R process
OF turning 1899 into decimal can ascertain whether
am correct
roo .O4B7jl 2J2O-t- iiZjs Jt-uui3i 1900 JOSS i3
O2l702-3-O6I43p65l0-jlilA 1901 llAtf21ji2JsWrl
5-50-6,l-- - u 1-iil-- l-l6i 271 -l6ig J2
-2l36-gi-24 5O1 -sGi -4f1i 2}jerS}2O5ji2&ilt6
l76Q6lN167ll -l}O-- 10 -Ol.fkjjtloJii2i5 1000
771gG}2s p 2D2uUgf}--,i- lb}OtOl ,OulOb'i SC.
inierm.nably
Here i what i called an ntcrminaie circulating deci
NAL of 2g9 places commencing At The 1T place win d.
and ending II the -tfn place Win J, Dom u NllCh ~
ures are accordingly pointed The 3OOth and following
places would be- repetition Of the figures OOl6o 81.
and 80 without end
Now perhaps. it Will be asked me If put down all
these figures from memory answer. c0nd do u ~
were worth the labor but il il and would advise
no one 70 employ himself in so useless "a manner.
merely put down Is OF the hrst figures from memory,
(acqnrsd in less than minutes study and ihen put
down all the rcmuin'ns heuros, they stand here,
rapidly ~ would write
Arithmeticians will well understand the vast impor
III 4 lsNts. mot ~ Ina Ef fU
fraction bui any other into decmas. SOme-PrOic--or
Perkins of Albany is one-wil perhaps be able 20 see
how this decimal may be thus written down with ony
the labor Of writing wish 10 teach those who do MT
understand II how 10 perform this operation.
am ready 10 show my ability 10 state from memory
the number of inhabitants IN the United States and 10
each state Territory and District according 10 every cen
.us from 1900 ,4O OF the number OF >arfs at each
census in each state Territory and District the mum
her Of inhabitants in each Of the cities and towns OF me
United States containing 1000 inhabitants or more.
viii show these statistics not in round numbers merely
(Which are the difficult TO recoect) but to the unit
stated in the authenticated tables ] Will give grem
number Of laiiiudes and lonsnudes. 10 the minute or
second stated in the tables In short there are numbers
which can be- stated in figures which viii not teach my
pupils to remember with litue labor 10 any extent and
with undertaking certainty.
trust / am understood as being able 20 teach my pa
pills to record their minds the date OF every event IN
history sacred prOfane Thus for instance the crei
ton of Adam. u am writing from memory alnne) took
place 1904 before Christ MS death IN 5oi Al ihe
ace of $50 wears The birth Of Abel j. put down by The
Chronoogsis in the year 1902 his death in 80, at the
age OF ~ years. The birth Of
Seth took place in
3.74-his death in 2q62 at the age of gl2
Do FnOs in 376l-his death in .-6i al the age Of Aj
Do Canaan in 367-hi- death 27bl al the Of 9lU
Do Mahalaee 3609-hs death in 27li al the aye Of -j
SC with All the remaining patriarchs according % The
Bible Chronology
A part of my system is the statement Of HOmOchro
nous events such a. Abraham died l-2l years before
and Napoleon l-9 years after the Christian Era Letters
introduced into Greece by Cadmus lig2 year, before
Christ and the discovery OF America by Columbus lif2
after Christ the departure the lsraees Of Egypt
and the dispersion of the MOOrs from Spain the one i
years before the other il years after Christ the Par
lament House II the Philistincs destroyed by samson
ms years before Christ the Parliament House of Great
Britain built . H. years after Christ
Although that part of Tlcd yHdfhy which includes Pure
NaeuOHics l. of vast importance. yet u cannot be-
pared in utility with the more scientific and arihmcfca
part including Mind Macu0Hics. This part OF IAcH
nArHn comprehend- ready methods for performing oil
arihmeica processes and the recording the result ~
the memory. To Illustrate my meaning have wrought
(by process known TO teachers the cube
root COZ l6 places of decmals and found 10 be-
-467OOU76i2bl-i2 By working an operation In Long
Division could extend this decimal Is places farther
with entire accuracy and then could record the ~
tended root a. have the above that could put %
down wiihou, farther labor and without reference 10
any book writing
In the manner state the