se of probable success by further prosecution and the
papers are found tolerably well prepared, MUNN & CO. will take up the
case and endeavor to get it through for a reasonable fee to be agreed
upon in advance of prosecution.

CAVEATS

Are desirable if an inventor is not fully prepared to apply for a
Patent. A Caveat affords protection for one year against the issue of
a patent to another for the same invention. Caveat papers should be
carefully prepared.

The Government fee on filing a Caveat is $10, and MUNN & CO.'s charge
for preparing the necessary papers is usually from $10 to $12.

REISSUES.

A patent when discovered to be defective may be reissued by the
surrender of the original patent, and the filing of amended papers.
This proceeding should be taken with great care.

DESIGNS, TRADE-MARKS, & COMPOSITIONS

Can be patented for a term of years, also new medicines or medical
compounds, and useful mixtures of all kinds.

When the invention consists of a medicine or compound, or a new
article of manufacture, or a new composition, samples of the article
must be furnished, neatly put up. There should also be forwarded a
full statement of its ingredients, proportions, mode of preparation,
uses, and merits.

CANADIANS and all other foreigners can now obtain patents upon the
same terms as citizens.

EUROPEAN PATENTS.

MUNN & CO. have solicited a larger number of European Patents than
any other agency. They have agents located at London, Paris, Brussels,
Berlin, and other chief cities. A pamphlet containing a synopsis of
the Foreign Patent Laws sent free.

MUNN & CO. could refer, if necessary, to thousands of patentees who
have had the benefit of their advice and assistance, to many of the
principal business men in this and other cities, and to members of
Congress and prominent citizens throughout the country.

All communications are treated as confidential.

_Address_

MUNN & CO.,
No. 37 Park Row,
_NEW YORK._

* * * * *

RECENT AMERICAN AND FOREIGN PATENTS.

_Under this heading we shall publish weekly notes of some of the more
prominent home and foreign patents._

* * * * *

SELF-ACTING SHACKLE AND CAR BRAKE.--Lyman Alphonzo Russell,
Shrewsbury, Vt.--This invention relates to improvements in self-acting
shackles and car brakes, and consists in an improved connection of
the brakes with the shackle, for automatic operation