The Bedford gazette. [volume] (Bedford, Pa.) 1805-current, 1861-05-31
ROHRER'S
ROHRER'S
ROHRER'S
ROHRER'S
ROHRER'S
PRACTICAL CALCULATOR.
PRACTICAL CALCULATOR.
PRACTICAL CALCULATOR.
PRACTICAL CALCULATOR.
PRACTICAL CALCULATOR.
ROHRER'S PRACTICAL CAL
M W. rIan
AUCULATOR.-

Book OF Plain Rules and Calculations for Business
Operation, By Martin NJ. Rohrer, Practical
Surveyor and Conveyancer. New Edi-
ton, Published by j. B. Lippincott
& Co., Philadelphia.
This work contains 2O4 pages, and upwards of
500 Rules and Examples, entirely and thoroughly
practical. such arise every day in the common
pursuits of Business 1t has already passed through
a number of Editions in rapid succession, and is
pronounced by all classes ct business men to be
the handiest book of preference, pertaining calcu
lations, that has been published.
Every example in the book is worked out in full
and tated in plain manner, that when a par
allie arises, those referring TO the work will
find no difficulty in readily solving it in word,
the general arrangement of the Calculator is so
simple, that aLy one who knows how to add, sub
stract, multiply, divide easily solve any
dinaTy example that arises in business or arrive at
the result of any estimate required.
The chief aim Of the author has been TO 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 the science of figures, deem
ing 1t sufficient for their purpose to be able at a
moment, by reference, TO arrive at the true result
The calculator differs in this respect from all A
rltnmetlcs of the day, and kindred works--it Is a
key to practical business calcuatons-it is, in the
hands OF the business man, what the kew to math-
emrtcal works in the hands of the teacher IN the
school-room-it facilitates time and insures cor
TectResS.
THE WORK TREATS OF THE
Measurement OF Land, of Lumber, of Brick and
Brick work, of Stone and Stone Work, OF Grain
and Gram Bins, of Coal and Coal Bins, of Wood, of
Solids of Liquids, of Circular, of Square, Irregu-
Ian Vessels, OF Cisterns and Vats, of Roofing, of
Pasterers, Painters, Gaziers', 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 its extea-
ded application TO 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 Assess ment of Taxes, of Weights and Measures,
OF Square and Cubic Measure, of the Square Root
and It's application to Business. of Surfaces, of Ex-
cavation, and of many other important practical
matters not within the scope of an advertisement
TO mention.
INHALED lpost paid) to any part of the United
States upon receipt of the money. Price of a sin
gle Copy, in Cloth, 60 Cents, two Copies for ST.
90. Bound in POcket-book form, Morocco, S1.O6
per copy.
ADDRESS
NJ. NJ. ROHRER,
Box 1911 Philadelphia p. o., Pa.
Nov. 30, 186o.-6ms.