The Bedford gazette. [volume] (Bedford, Pa.) 1805-current, 1861-05-17
ROHRER's PRACTICAL CAL.
Book OF Plain Rules and Calculations for Business
Operation, BY Martin NJ. Rohrer Practical
Surveyor and Conveyancer. New Edi-
tion, Published by j. B. Lippincott

Book OF Plain Rules and Calculations for Business
Operation, BY Martin NJ. Rohrer, Practical
Surveyor and Conveyaucer New Ed
ton, Published by j. B. Lippineott
& Co., Phiadeph phia.
TINS work contains 20l pages, and upwards OF
500 Rules and Examples, entirely and thoroughly
dTactical, such as arise every day in the common
pursuits of Business. 1t has already thronob
number of Editions in rapid succession. and Is
pronounced by all classes of business men TO be
the handlest book of reference pertaining TO cacu-
latlons. that has ever been published.
Every example IN the book is worked out in full
and tated IN PLAIN manner, that when a par
allie case arises, those referring 20 the work will
ind 40 difficulty in readily solving it; in a word
the general arrangement of the Calculator is so
simple that aLy one who knows how 10 add, sub
stract, multiply, ordiVde, can easily solve any or. .
dinary example that arises in business, arrive at
the r@suit Of any s@tie"st~ r~q'rirsd.
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 abont speuding time in discussing the
philosophy of rules the science of figures deem
ing 1t sufficient for their purpose 10 be able at
moment, by reference, to arrive at the true result
The calculator differs in this respect from all A
rlthmetlcs of the day, and kindred woTks-it IS a.
key TO practical business caculatI0ns-it IS in the
hands Of the business man, what the key to math-
emTtica works is in the hands of the teacher IN the
schooi-roOm-It facilitates time and insures cor
rectnsss.
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, or Erregu-
Lar Vessels, OF Cisterns and Fats, of Roofing of
Pasterers Painters, G- ziers', 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 extel-
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 to Business, of Surfaces, of Ex-
cavation, and of many other important practical
matters not within the scope of an advertisement
to mention.
0z-Maied post Paid) to any part of the United
States upoi rscept Of the money. Price of sim
gle Copy. in Cloth, 60 Cents or two Copies for ST.
90. Bound IN Pocket-booG form, Morocco, sl.O6
per copy
ADDRESS
NJ. NJ. ROHRER,
Box 1911 Philadelphia p. o., Pa
Nov. 80, 1s60-6ms.