The Bedford gazette. [volume] (Bedford, Pa.) 1805-current, 1861-04-19
ROHRER'S
ROHRER'S
ROHRER'S
ROHRER'S
ROHRER'S
PRACTICAL CALCULATOR.
PRACTICAL CALCULATOR.
PRACTICAL CALCULATOR.
PRACTICAL CALCULATOR.
PRACTICAL CALCULATOR.
.OHRER'S PRACTICAL Cal.

Book OF Plain Rules and Calculations for Business
Operation, By Martin NJ. Rohrer, Practical
Surveyor and Conveyancer. New Edi-
ton, Published by J. b. Lppincott
Co. Philadelphia.
This work contains 204 pages, and UPWARDS Of
500 Rules and Examples, entirely and thoroughly
dractical such as arise every day in the common
pursuits oil Business. 1t has already passed through
number OF Editions in rapid succession, and is
pronounced by all classes of business men to- be
the handest book of reference, pertaining 10 calcu
lations, that has ever been published
Every example in the book is worked out in full
and tated IN plain manner, that when par-
allie case arises, those referring TO the work, will
find no difficulty in readily solving it in a word
the general arrangement of the Calculator is so
simple, that ary one who knows how TO add, sub
stract, multiply, or divide, easily solve any or
binary example that arises in business or arrive at
the result of any estimate required.
he CnieT aim oi the author bas been 10 eschew
theory and philosophy in figures, aiming only at
facts and simplicity, believing that business men
care little about spending time in DISCUSSING The
philosophy OF rules or the science of figures deem
ing 1t sufficient for their purpose to be able at a
moment, by reference, 10 arrive at the true result
The calculator differs in this respect from all A.
cithmetics of the day, and kindred works-it Is a
key to practical business calculatIons-t is in the
hands of the business man, what the key TO math-
emrical works in the hands Of The teacher ~ the
school-room--it facilitates time and insures cor
reetnPss.
THE WORK TREATS OF THE
Measurement OF Land, of Lumber, of Brick and
Brick work, oil Stone and Stone Work, OF Grain
and Gram Bins, of Coal and Coal Bins, OF Wood of
Solids, of Liquids, of Circular of Square, or lrregu-
Ian Vessels, ol Cisterns and Vats, of Roofing, of
Plasterers Panters' Glaziers', PAYERS, Plumb, rs
Paper Hangers, and Upholsters', Work. 1t treats
of Currency end OF Foreign and Domestic Exchange
of the Decimal System, of Reduction and lis exten-
ded application 10 Business, of Simple and compound
Interest," and their entire application TO Business
transactions, with the laws and usages governing
and regulating the same, together with numerous
Commercial Forms-of Legal Tender, of Partial
Payments on Notes, of Banking and Bank Discount
OF Equation OF Payments and Partnership Accounts
OF Assessment of Taxes, of Weights and Measures
of Square and Cubic Measure, Of the Square Root
and its application Business, of Surfaces of Ex-
cavation, and Of many other important practical
matters not within the scope of an advertisement
to mention
10 Mailed post paid) TO any part Of the United
States upon receipt of the money. Price OF sin
gle Copy, in Cloth, 60 Cents, or two Copies for ST.
90. Bound in Pocket-book form, Morocco, $l.O6
per copy.
ADDRESS
NJ. Nj. ROHRER,
Box 1911 Philadelphia p. o., Pa.
Nov. 80, 1s60.-6ms.