New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1845-08-09
Improvement in Mnemonics.

Ma GREELEY. Dear Sir-ln conversation yesterday
with my friend Dr. Cloves. Of Philadelphia was much
pleased a. well surprised observing TO what perec
ZION he has been enabled reduce the system OF NasmoR
ics With little seeming effort, he will give you for in
stance the number of inhabitants IN every state of the
Union and that not for single year but according "a
every census from 100 20 $40 and not in round mum
ber- but to the very unit In ike manner he viii give
the number Of Slaves each STATE the number of square
miles etc the population OF all the cities aud principal
towns in the United states. and indeed. throughout
might almost say the whole globe. with their attitudes
and loncitude. you wish 20 the very second He VII
also exhibit some most astonishing results IN ariihmet
cal operations Being asked the square root Of . he n
santy put il down 20 nine places Of dccnas In Ike
manner will he give you the square or cube roots Of 3
l56Ts9l TO- etc. and of many other numbers. lie
will also exhibit several very remarkable methods Of IA
citating miihmecs operations.
DIR pan il a combination of the systems Of DR. Grey
Mr. Feinge aud other writer's the subject with import,
ant notifications OF ia own 1t differs from that Of Mr.
Goursud in the and rapidly of forming the key 0rds
and in the minuieness Of IL. details In the statement
attitudes and longtudes for instance Mr. g. seems TO be-
satisfied with giving the dQres merely Or G gives the
darn, minute and second In the population Of cii'
Mr. g. descends in some instances to hundreds Dr. G
Is not satisfied unless he gives the very number
toned in the authenticated tables The formation Of the
key cords by Mr. g.. Is a work Of no little difficulty and
labor Dr. c. forms his a. rapidly arthmetcian
can perform the business Of enumeration
Dr. Cloves will return 20 Newiork IN few days
and would be happy to have an opportunity Of commu
ncang the public (and especially 10 such are fond
Of statistics and arthmeic) the by which he has
enabled himself 10 arrive those results and Of demon
s,raiing others that they may acquire the fac
iy in recoec,ng numbers and performing arithmetcal
operations lie will show that his system. applied 10
arithmetic, s Of great practical importance. The pupil
will not only be taught the most approved method Of
performing any rule but will in every instance know
whether he has brought out the true result In short
he will be taught 10 ascertain and record the result Of
every operation II Or. c. be assured Of class 70
attend course of Lectures he viii Immediately employ
himself in putting In print his system for the use OF his
pupils and IN the course OF October would commence
giving lessons in this city
will barely add that DR.. C. is gentleman of unques.
tiouable learning without spice Of the hnmb1g' aud
that whateyerfe promises he will faithfully perform.
That these rather antiquaied qualities will recommend
him to the citizens Of NewYork would scarcely ven
tnre 20 assert. Yours truly, 1. J. SAW YER.
The Doctor il not fond Of emitting his system system
Of Maem0uics (for Mnemonics comprehends only part
Of his plan) but calls Il Taclymahy-ie rapid method
Of acquiring and recording useful truths especially those
in which numbers are concerned. tbs