Columbia Democrat and Bloomsburg general advertiser. [volume] (Bloomsburg, Pa.) 1850-1866, 1861-01-26
IL O HI R Il IL -
PRACTICAL CALCULATOR,

A BooK OF PLAIN RULES AND CALCULATIONS BUSINESS
OPERATIONS, Ry MARTIN NJ RoHnER, PRACTICAL sur
vEyoR CoSvsy ANGER. NEW EDITION, PUBLISHED
ny j. Is. LrPsoorT & Co. PHILADELPHIA
This work contains o04 pages, and upwards Of 500
Rules and Examples entirely and thoroughly Practical
such arise every day in the common puru of usi
ness. 1t has already passed through number of Edi.
tions in rapid and is pronounced by all eias
of To be the or REFERENCE
pertaining calculations that has ever been published
Every Example in the book is WORKED OUT IN FULL and
stated plain manner, so that whcn parallel case
arises those referring to the work will find difficulty
in readily solving in word The general arrange
ment of the CALCULATOR is so simple, that any one
who knows how to add, subtract multiply, or divide
easily solve any ordinary example that arises in bus
The chief aim of the author has been TO eschcw theory
and philosophy in figures aiming only at facts and sim
pcity, believing that business men care little about
spending time in discussing the philosophy of les
the science lof figures, deening it sufficient for their
purpose to be able At MOMENT be reference, to arrive
at the true result. The CALCULATOR differs in this
respect from all Arthmetics of the day and kindred
works is key TO practical business calculations it
is in the hands of the teacher in the sthOolrooA IA.
ctates time aud insrres correctness.
THE WORK TREATS OF THE
Measurement of Land, Of Lumber, OF Brick and Brick
Work, Of Stone and stone weIk, Of Grain and Grain
guilds, ofCircuar Square, or Irregular Vessels OF Cis
terms and va,s. of Roofing Of Piasterers, Painters
GIaziers, PAYERS Plumbers Paper Hangers, and Up
no stcrs Work threats Of Currpncy and of Foreign
and Domestic Exchange Of the Decimal System OF Re
duction and its extended application to Business o
simple and Compound Interest and their entire appi
cation Business transactions, with the laws and
gee governing and regulating the same together Will
nuner ro,is Commercial Forms.-of Legal Tender of Par
tia Payments on Notes, of Banking and Bank Discount
of Equation OF Payments and of Partnership Accounts, q
Assessment of Taxes, of Weights and Measures q
Square and Cubic Measure ef the Square root and i
Application to BUSINESS, of Surfaces of Excavation
and of many other important practical matters not it'll
in the scope of an advertisement to mention.
1T Is JUST THE BOOK FOR THE
Farmer the Merchrnt the Mechanic the Artizsn or tn
fcssiona man. 1t has proven valuable auSiliar.
to the Lawyer the Justice of the Peace, the Conveyance
and Real Estate Rroker to the Assessor the Banker tn
Clerk to the Civil Engineer and the Surveyor to tn
Carpenter and Bricklayor to the stone mason and tn
Piastere to the Paper Hanger and Uphosterer, to tn
PAYER and the Tilcr, &c &C. each and all will fnd
adapted to their various wants better than any boo
pub ished.
| ~ Mai'ed (post paid TO any part Of the Unite
States upon receipt of the money. Price of a singI
| Copy in Cloth to Cents, two Copies for 81 co.
Bound in Pocket tbook form, Morocco 81 90 per eopy
Address, VI. NJ. ROHRER,
| Box 1911 Philadelphia r. o., Pa.
| Dec, l. IsGe-6m.