ONE DOLLAR PER YEAR.

A paper which commends itself at once to Physicians, Druggists,

Chemists, Teachers, Farmers, Mechanics--in short, to Professional and

Practical Men of every class.

The Domestic Recipes and Formulae for Art Processes are of themselves

worth many times the cost of subscription.

---> SPECIMEN COPIES SENT FREE.

Address

BOSTON JOURNAL OF CHEMISTRY,

150 Congress st., Boston.

* * * * *

FOOT LATHES,

And all kinds of small tools. Illustrated catalogue free.

GOODNOW & WIGHTMAN, 23 Cornhill, Boston, Mass.

* * * * *

AGENTS WANTED.--To sell Stephens' PATENT COMBINATION RULE, which

embraces a Rule, Level, Square, Plumb, Bevel, Slope Level, T Square,

etc., in one compact tool. These instruments retail at $3.50 each, and

energetic salesmen can make money by selling them among mechanics. We

warrant them in every particular, as the construction and graduation

is faultless. Send for descriptive circular, cuts, and terms.

STEPHENS & CO., Riverton, Conn.

* * * * *

FELT. THE BEST, CHEAPEST and MOST DURABLE non-conductor known, for

sale by the Original Manufacturer, at the BOILER FELTING WORKS, 46

Courtland st., New York.

* * * * *

UNIVERSAL WOOD WORKER. For Agricultural, Railroad, Car, Carriage, and

Wagon Works, Planing Mill, Sash, Door and Blind, Bedstead, Cabinet and

Furniture Factories.

McBETH, BENTEL & MARGEDANT, Hamilton, O.

* * * * *

INVENTOR'S EXCHANGE,

245 BROADWAY, N. Y.,

"AM. AGRICULTURIST" BUILDING.

TANGIBLE INVENTIONS NEGOTIATED.

No goods received unless ordered.

B. F. KEMP, Proprietor.

* * * * *

MACHINISTS' TOOLS, at greatly reduced prices. Also, some Woodworth

Planers and Second-hand Tools. 97 to 113 R. R. ave., Newark, N. J.

E. & R. J. GOULD, successors to Gould Machine Co.

* * * * *

N. B. PATENTED Articles introduced.

Also, State and County Rights sold for Inventors.

STONE, PUGH & CO., 55 N. 6th st., Philadelphia.

* * * * *

GOLDEN HILL Seminary for young ladies, Bridgeport, Conn. Miss EMILY

NELSON, Principal.

* * * * *

1826 USE THE VEGETABLE 1870

PULMONARY BALSAM.

The old standard remedy for Coughs, Colds, Consumption.

"Nothing Better." CUTLER BROS. & Co., Boston.

* * * * *

THE CALVERT IRON ROLLING MILLS are offered at private sale. These

mills are situated in the city of Baltimore, and cover 11/2 acres of

ground. The Machinery is of the most approved description, for

making all sizes of round and square bar iron, from 1/4 in. to 3 in.

diameter, and flat bars of all widths, up to 7 inches.

The buildings are ample and commodious.

In addition to the Rolling Mills are two brick buildings (50x125

feet and 40x90 feet), now containing an 80 H. P. Engine, and Spike

Machinery, but which could be used for the manufacture of Nails,

Horseshoes, or any other branch of heavy hardware.

This property offers an unusual opportunity to capitalists, and will

be sold at a reasonable price.

Scientific American, Volume XXIV., No. 12, March 18, 1871 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 138 / 194 题