The Richmond palladium. [volume] (Richmond, Ind.) 1855-1875, 1861-03-07
.1ohrer's
PRACTICAL CALCULATOR,

Book Of Plain Rules and Calculations for business
Operations. By Martin NJ. Rohrer, Practical survey
h Lippineott s. Co., Philadelphia
TIL work contains 2e4 pages, and upwards OF 800
Rules and examples entirely and thoroughly practi
of business 1t as already passed through several
editions rapid succession. aud is pronounced by all
classes Of business 70 b. the hapdiest book OF
reference pertaining Gale EQUATIONS, that has
boen published
Every example in the book is worked in full
and stated Ia plain manner. that when parallel
arises, those referring the work will find no
difficulty in readily solving it In word the gene
raj ngement Of the calculator is simple, that
any know ng how to add subtract. multiply orii-
vde easily solve any ordinary example that aris
in business arrive the true result OF any es
innate required.
The chief aim of the author has been to eschew
theory and philosophy in figures, aiming only at
fac.s and simplicity, believing that business men care
little abo spending time in discussing the pniloso
ply Of rules the science of figures deeming 1t
6cient for their purpose to be able at moment, ~
reference arrive at the true result. The CALCU-
LATOR differs in this respect from all arthmeties OF
the day and kindred works-it is key to practical
business cacuiationsit is in the hands OF the ousi
ness men, what the key TO mashematie works IN
the hands of the teacher in the schooroom-it faci
itates time and insures correctness.
THE WORK TREATS OF THE
Measurement of land, lumber, Of brick and eries
work. Of stone and work, of grain and grain
bins Of coal and coal bins of wood. of solids Of iiq-
uds of circular square irregular vessel, OF cis-
and watts, of roofing of pasterers pa,nters Ola
sterers work 1t Yeats of currency and foreign I'd
domestic exchanx Of the deciual system, OF redue-
ton and it's extern led application to business, OF sim
pie and compound interest, and their application &c
business transactions, with the laws and usages rega-
ating md governing the sans. together with numer
commercial formsof legal tender, OF partial pay
| ments notes, of banking and bank discount, o.
equation Of payments and of partnership accounts,
| assessment Of taxes, of weights and measures, o
square and cubic measure of the root and It's
application business, of surfaces Of excavation
and of many other important prseticsl matters moi
within the scope Of an advertisement 70 meution
| 1T Is JUST THE BOOK FOR THE
Farmer, the merchant he mechanical he atiz'n or th
professional man 1t has proven valuable auxiliafl
To the lawyer. the Justice If the Peace, the convey
ANGER and real broker the the Ia nix
err, the clerk to the civil engineer the surveyor
to the carpenter and the brekiay e the stone M
and the lssterer, TO the paper hanger and uphoi
serer to the payer and the ter, &c, &c, each snt
all will find adapted to their various wants bette
than my book published
:gMaiied (post-pad) to any part of the United
States upon receipt of he money. Price of Single
copy, in cloth, 90 two copies 81 90 Bound il
pocket book form, morocco, 81 per copy.
Address. NJ. NJ ROHRER,
2-6m Box 1911 Philadelphia P. o., Pa.