The Findlay Jeffersonian. [volume] (Findlay, Hancock County, Ohio) 1870-1881, 1878-04-26
IFrom the Scieptific AmerIcau. /

HURD & HOUGHTON.I8 AsToR PLACE. MY.
H.O. HoUGHToN & COMPANY, Boston
THE ERIVEkSIDEP PRESS, Cambridge.
From the Scientific Americana
The completion of Knights "American
Mechanical Dictionary" is an event in the
annals OF literature IN this country, as ii
marks the substantial completion of a 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 a
work of 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 i'm
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 ol
fndexing, rendered invaluable for purposes
of reference and research. Add TO this the
laDors of artist and engraver. and there IL
little food for marvel that the work has cost
500 900: that IL treats OF 2O.OVO suDJects; con-
tains ,4Oe engravings; and that ills three vol
umes include $40 pages. 1t Is more an en-.
cyclopadia thar a dictionary; il Is. in fact,a a
mechanical and scientinc library, carried ny
to the latest dates A just estimate of the
comprehensive nature of the work, and lis
i'm mportance TO inventors, engineers, and ar
tisans of every class and in all Libraries, can
voIumes themselves.
The scope oGthis work eoncernsAg gricullural
Machinery, Wood, Metal Glass, Stone. Clay
Cement, ana Leather Working; Mining. II y
draulic, Railway, Marine, and Military En-
gineering; Working in Cotton. Wool, StIs,
| Flax, Hemp, aud Paper; Steam, AR, and
| Gas Engines. and other Motors; Lighting
| Heating Drying and Ventilating; Fine Arts
Photograph. Electric, Telegraphic, Optical
Theological, Calculating, urgicai, and Den-
| tai instruments, etc.
| Itsvalue.even Ithere were in print Others
| OF a similar nature, would be very great on
| account of It's scope. It's great number of i'll.
lugtTationg. and the uusiworthineSs of its
| author; but at present its value is enhanced
by the fact that If has. properly speaking. nc
competitor. There is published no book o.
| similar intent which is at once so large, sc
well illustrated, SO closely brought down iC
| the present time, and SO full ofillustrations
Dentists. surgeons, philosophers. chemists
| engineers, mechanics, ard scientific men and
students ofevery grade. will 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
find a constant supplementary course of in
| struction so arranged as to be available fol
linstant reference. The work consists of thret
I handsome octave volumes and will be ionnC
al Invaluable book of referance in the fam
lily, the counting-room. and the workshop
| No better educational work could be placeG
latent taste which may have an impOrtan
bearing on their life career.
The ork is sold by subscription and per
sons desiring to purchase 1t should addre
the Publishers as below. Agents Van ed
Sena for full descriptive circular with term
W.S.FORSHEE & co, General Agents, Il
West tn ST., Cincinnati, Ohio