The Findlay Jeffersonian. [volume] (Findlay, Hancock County, Ohio) 1870-1881, 1878-02-15

PU bLISHED BY
HURD d HOUGRTON,l3 AsToR PLACE NY.
H.o. HOUGHToN & COMPANY Boston
THE ERIVERSIDEP PRESS, Cam bridge.
From the Scientific American
The completion of Knights American
Mechanical Dictionary" is an event in the
marks the substantial completion of great
and elaborate undertaking, the labor on
which has EXTENDED over period oil elght
is the task involved in the preparation of
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 il 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
10 careful revision and condensation, and by
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
SlOO 900: that IL treats of 1900 subjects; con-
tains 400 engravings; and that It's three vol
umes include 800 pages. II is more an en-
cyclopoedia than DICTIONARY; II is. in fact a
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
only be gained by careful examination ofthe
volumes themselves.
The scope ofthis work kconcernsA Agricultural
Machinery, Wood, Metal, Glass, Stone. Clay,
Cement and Leather Working; Mining, Hy-
draulic, 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 Ventilsting; Fine Arts;
Photographs, Electric, Telegraphic, Optical, I,
Neurological, Calculating, urgieal, and Den
| tai instruments, etc.
tsvalue 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
| lustrations, and the trustworthiness OF It's
| author; but at present its value Is enhanced
4 by the fact that il 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 oftllustrstions.
| Dentists, surgeons, philosophers, chemists
| engineers, mechanics, and scientific men and
students ofeveTy grade. will hnd here des-
| criked and illustrated more Of The instru-
ments and machines peculiar 10 their pro
| lesion than can be found In we'll furnished
stores and manufactures, and they Will also
ind q constant supplementary course OF In
struction so arranged as TO be available for
4 instant reference. Inc work consists OF three
handsome octave volumes.and Will be 1ouno
an Invaluable book OF referance In the IAN
lily, the counttng-room. and the workshop
No better educational work could be placed
| before children, adapted as IL is to awaken 9
latent taste which may have an important
bearing on their life career.
| The work is sold by subscription, and per
sons desiring to purchase 1t should sddres,
the Publishers as below. Agents Wanted
Send for full descriptive circular with terms
S'FoRsHEE & co, General Agents, III
wset <th St., Cincinnati ONO.