The Findlay Jeffersonian. [volume] (Findlay, Hancock County, Ohio) 1870-1881, 1878-06-28

II. o. aOUSHTON y COMPANY Boston
THE ERIVEKSID EPRESS, Cambridge.
From the Scientific Americana
The completion OF Knights american
Mechanical Dictionary" is an event in the
annals OF literature N this country, as il
marks the substantial completion of great
and elaborate Undertaking, the labor on
which has extended over period OF eight
years.; 1t is difficult TO realize how colossal
is the task involved in the preparation of
work nf this description. Thousands Of pat
ents, American and foreign, have been di-
gested, industrial processes of every nature
have been examined. and the latest prove
ments therein noted. Engineering works,
scientific discoveries, and tools OF every craft
have been studied; and finally, all this inn
mense collection, gathered from the whole
field of applied science, has been subjected
to careful revision and condensation. and by
means Of ingeniOusly contrived systems of
indexIng, rendered invaluable for purposes
of reference and research. Add TO this the
laDors of artist and engraver. and there is
little food for marvel that the work has cost
500 900: that II treats of 10000 subjects con-
tains 400 engravings; and that its three vol
umes include 2 800 pages. 1t is more an en-
cyclopoedia thar a dictionary; il is. in fact,s
mechanical and scientific library, carried up
to the latest dates. A Just estimate of the
comprehensive nature of the work, and its
importance TO inventors, engineers, and ar
tisans of every class and in all libraries can
only be gained by careful examination of the
voIumes themselves.
The scope ofthIs work concerns A gricultural
Machinery, Wood, Metal, Glass, Stone. Clay,
Cement, and Leather Working; Mining, Hy-
drau,ic, Railway, Marine, and Military En-
gineering; Working in Cotton. Wool, Silk,
Flax, Hemp, and Paper; Steam, AIR. and
Gas Engines, and other Motors; Lighting.
Heating, Drying and Veutilating; Fine Arts;
Photographic, Electric, Telegraphic, Optical,
Neurological, Calculating, urgical, and Den
tai Instruments. etc.
Its value.even IL there were in print others
OF a similar nature, would be very great on
account of its scope. its great number of IL
lustrat1ons, and the IrustwOrthiness of its
author; but at present its value is enhanced
by the fact that ii has, properly speaking, no
competitor. There is published no book OF
similar intent which is at once SO large, so
well illustrated, SO closely brought down 10
the present time, and SO full offllustratiOns
Dentists, surgeons, philosophers. chemists.
students ofevery grade, viii find here des-
cribed and illustrated more OF the instru-
ments and machines peculiar to their pro-
fession, than can be found in well furnished
stores and manufactures, and they will also
fnd constant supplementary course of in.
struction SO arranged as to be available for
instant reference. The work consists of three
handsome octave volumes, and will be found
an Invaluable book of referance in the lam
lily, the counting-room. and the workshop.
No better educational work could be placed
before children, adapted as IL is TO awaken a
latent taste which may have an important
bearing on their life career.
The work is sold by subscription and per-
sons desiring to purchase il should addre5
the Publishers as below. Agents Wan ed.
Send for full descriptive circular with terms
to Agents.
W.S.FORSHEE & CO, General Agents. l76
Wes' tn St., Cincinnati, Ohio.