[October, 
AMERICAN AGRICULTURIST, 
1872 . ] 
THE 
This Illustrated Weekly Journal of Practical Information on Art, Science, Mechanics, Invention, 
Chemistry and Manufactures, has been published Twenty Seven Years, and stands at the head of 
Industrial Journals of tho world in point of Circulation and Influence. 
livery number has Sixteen Imperial paces,embellished with Engravings of New Inventions, Machin¬ 
ery, Tools for tho Workshop, House, and Harm, also Public Buildings, Dwelling Douses, and Engineer¬ 
ing Works. 
The Scientific American is the same size as narpers’ Weekly and full of Engravings. 
Tho Illustrated Department of tho Scientific American is a very striking feature, and has elicited 
tho praise of tho Press at homo and abroad, and all articles appearing in its columns aro written in a 
popular and instructive style. 
To Inventors and Mechanics tho Scientific American has special value and interest, from the fact 
that it furnishes an Official List of Patents issued, with copious notes of tho principal American and 
European Patents. 
The Publishers offer as a T remium for Clubs tho large and splendid Steel Engraving—“ American 
Inventors,” as follows : Any one sending ten subscribers for one year and $25 will receive a picture. A 
Club may be made up from difl'erent post-offices. 
For full particulars and sample copies of the Scientific American, address the Publishers. 
The receipt for tempering Steel and all articles pertaining to tho Work-Shop and Mechanic’s Tools, 
and articles in use in alt households, aro published in its columns and worth ten times the subscription 
price of the paper. 
Terms to the Scientific American : Singlo copies ono year, $3.00: six months, $1.50: and ono 
dollar for four months. To Clubs of ten and upwards, $2,50 each per annum. Address, 
MUNN & CO., 37 Park Row, N. ,Y. 
GREAT VALUE OF PATENTS'. 
ROB ABLY no investment of a small sum of money brings a greater return than tho expense 
incurred in obtaining a patent even when tho invention is hut a small one. Larger inventions 
are found to pay correspondingly well. The names of Blanchard, Morse, Bigelow, Colt, Er- 
riceson, Howe, McCormick, Iloe, and others, who have amassed immense fortunes from their 
inventions, are well known. And there aro thousands of others who have realized large sums 
from their patents. The first thing requisite for an inventor is to know if his invention is pat¬ 
entable. To obtain this information, prepare a sketch and description of tho invention, or 
send a model to Hunn A Co. and ask advice. 
HOW TO 
OBTAIN. 
More than Fifty Thousand inventors Imvo availed 
themselves of the services of Monn & Co. during 
the TWENTY-SIX years they have acted as solici- 
_ tors and Publishers of tho Scientific American. 
They stand at- tho head in this class of business, and with their large corps of assistants,mostly selected 
Iront tho ranks of the Patent Office; men capable of rendering the best servico to tho inventor, 
from the experience practically obtained whilo examiners in tho Patent Otficc, enables Munn <fc Co. to 
do everything appertaining to patents quicker, better and cheaper than any other reliable agency. 
Munn & Co, examine drawings, models and descriptions of new inventions of every kind, and givo 
opinion asto their patentability, by mail, freo of charge. They also make special examinations at tho 
Patent Ofiico, and furnish a more elabornto opinion for a fee of$5.00. 
Munn & Co. prepare specifications and drawings for Patents, Caveats, Re-issues, Designs, Trade- 
Marks, Copyrights, Assignments, conduct Interferences, obtain Extensions, and solicit Patents in ail 
foreign countries. Every patent taken by Munn & Co. receives special notice in the Scientific Ameri¬ 
can, which is read by 200,000 persons. A pamphlet giving prices of Foreign Patcuts aud full particulars 
cent free. 
CANADA. —Patents maybe taken in Canada by Americans on the same terms as by their 
own Citizens—new law just passed—copy of law and full particulars sent free. 
HINTS TO INVENTORS.— a book of llO pages, with 140 engravings of mechanical move¬ 
ments, containing the U. S. Patent Laws, Government fees, rules and proceedings, how to make applica¬ 
tions for Mechanical and Chemical Patents, Caveats, Re-issues, Designs, Trade-Marks, and Copyrights, 
hints on selling patents, etc., free. A hound volumo with addition of tho new census, by counties and 
principal cities, important to every seller of patents, price 25 cents. Advice, free. Everything confidcn- 
ential, Address all communications to 
MUNN & CO., Publishers Scientific American, 
Office in Washington> con F Jb 7th Sts. 37 Park Row, New York. 
JUST PUBLISHED. 
PRACTICAL 
TROUT CULTURE. 
By J. H. SLACK, M.D., 
Commissioner of Fisheries , N". J.; Natural History Editor 
of Turf , Field , and Farm , N. Y.; Proprietor of 
Troutdale Ponds , near Bloomsbury, N. J. 
ILLUSTRATED. 
CONTENTS: 
Introduction. 
Chapter I.—History of Fish Culture. 
Chapter II.—Choosing a Location. 
Chapter III.—Planning and Construction of Ponds. 
Chapter IV.—Hatching-Houses and Apparatus. 
Chapter V.—Spawning Races. 
Chapter VI.—Artificial Impregnation. 
Chapter VII. — Incubation. 
Chapter VIII.—Care of Young in Nursery. 
Chapter IX. — First Year. 
Chapter X.—Second and Third Years. 
Chapter XI.—Transportation. 
Chapter XII.—Bibliography of Fish Culture. 
• PRICE, POST-PAID, $1.50. 
ORANGE JUDD & COMPANY, 
345 Broadway, New York. 
A Valuable Home Library. 
BACK VOLUMES 
OF 
American Agriculturist, 
AND OF 
Hearth and Home. 
The publishers of the American Agriculturist can supply 
any of the back volumes of that paper from the Sixteenth 
to the Thirtieth. These volumes contain more varied 
and interesting information on all matters pertaining to 
the Farm, Garden, and Household, than can he obtained in 
hooks costing three times as much money. Price of each 
bound volume, at the Office, $2.00; sent post-paid, $2.50. 
Tho publishers can also supply the back volumes of 
their finely illustrated Weekly Journal, Hearth and Home , 
for the years 1869, 1870, and 1S71. These volumes are 
neatly and uniformly hound in cloth, with title in gilt on 
back and side. With their beautiful engravings, and 
abundance of useful and entertaining reading, they will 
prove valuable additions to any library. Price of each 
bound volume, at the Office, $4.00; if sent by express, 
the purchaser will pay express charges. 
ORANGE JUDD & CO., 245 Broadway, New York. 
DENSLOW & BUSH’S 
“ Premium Safety ” 
OIL. 
Fire-test 150 degrees. 
“ This oil will not explode or 
ignite if a lamp be broken.” — 
If. Y. Tribune. Sold by all 
dealers in the TJ. S. Address 
DENSLOW & BUSIT, 
130 Malden Lane, N. Y. 
Minton’s Eiacsunstic Tiles 
FOR FLOORS. 
CAUNKIRK VASES for Lawns and Gardens, 
Chimney Tops, etc. 
MILLER & COATES, 279 Pearl st., New York. 
T ZOZ O M s <o> IE^r * s 
"WORLD-RENOWNED PATENT 
Glove-fitting Corset. 
If you want the most satisfac¬ 
tory,best-fitting. ami the cheapest 
Corset, for its real value, you 
have ever worn, buy 
THOMSON’S 
GENUINE PATENT 
Glove- Fitting. 
* No Corset has ever attained 
such a reputation, either in this 
or any other country. As now 
made in length and fullness of 
bust, 
IT CAN NOT BE IMPROVED. 
Every Corset is stamped with the name Thomson, and the 
trade-mark, a Crown. Kept by all first-class dealers. 
nUPTIJKE CAN JSE Cl KEll) 
Jlw without suffering. Elastic Trusses are superseding 
all others. Before buying Metal Trusses or Supporters, 
send for a descriptive circular to the ELASTIC TRUSS 
CO., 683 Broadway, New York. 
/INVALIDS’ 
TRAVELING CHAIRS, 
PROM $15 to $50. 
FOR IN AND OUT-DOOR USE. 
Any one having nse of the hands 
can propel and guide one. Having 
no use of the hands, any child of five 
years can push a grown person about. 
Patent Sedan Carrying Chairs. 
State your case and send stamp for 
circular. 
iS. A. SMITH". Successor to 
STEPHEN W. SMITH. 
‘JO William St., New York. 
A FIRST-CLASS BOOK CAN¬ 
VASSER. can hear of a permanent situation, either 
on salary or commission, on a work of undoubted success, 
hv addressing P. O. Box 2,793, Philadelphia. State capa¬ 
bility, previous business, and references. 
IMPROVED FOOT LATHES, 
With Slide Rest and Fittings. Just the thing 
for the Artisan or Amateur Turner. 
ALSO HAND PLANERS. 
Many a reader of this paper has one of them. 
Selling in all parts of the country, Canada, Cuba, Europe, 
etc. Send for descriptive Catalogue. 
Address N. H. BALDWIN, Laconia, N. H. 
it ! National Farmer and Bee-.lour 
Free. 3 months on trial, 10 
and best Bee Book. SI. Best Bee¬ 
ne with Chrorao of Italian Bees. 
Wanted. Write now for “ 
to H. A. KING, 14 Murray St., N, 
A GENTS, L4M>B£ ! —§12a da}’ made selling- 
I — Scissors Sharpener and other new wares. Sample 25c. 
Catalogue free. T. J. HASTINGS & CO., Worcester, Mass. 
Who wish to secure 
PATENTS should 
write to MUNN & 
CO., 37 Park Row, 
New Y'ork.for Advice and Pamphlet, 103 page”, FREE. 
ATWOOD’S 
Country and Suburban Houses. 
By D. T. ATWOOD, Architect. 
This work is finely illustrated with about one hundred 
and fifty engravings, aftid gives Instruction upon all points, 
from tho selecting of a place to build to the perfect com¬ 
pletion of the house. 
Contents: Hints to House Seekers; The Plan; Water 
Supply: Kitchen and Ventilation; Proportion; The Style; 
The Foundations; Cisterns and Filterers; Superstructure 
Walls; Brick; Description of Ancient Methods; Concrete 
Walls; Proportions; How to Lay a Wall; American Build¬ 
ing Block; Eli Pise; Wooden Walls; External Covering 
of Frames; the P.oof; Timber—its Properties and Preser¬ 
vation; Painting; Designs and Plans of Cottages, Country 
Houses, Churches, Stables, etc. 
Price, post-paid, $1.50. 
ORANGE JUDD & CO., 245 Broadway, New York. 
(p 
- Try; 
, Sample 
15 month' 
Ben Magaz; 
Agents 
' Sample” 
