The ferrotype and how to make it - The Grian Press

THE GLASS ROOM. 41
and lias sold them only to those who were able
and willing to buy the patent right for the
town or county in which they wished to use the
same.
By such an illiberal and exclusive policy, he
has rendered it profitable for others engaged in
the manufacture of camera boxes to make and
sell innumerable infringements on Southworth's
patent, and thus entailed on himself numerous
law suits to maintain the validity and the rights
guaranteed by the patent.
It is conceded by the general public, and es-
tablished by law, that the man who invents a
new and useful piece of apparatus, a new and
useful machine, a labor-saving instrument or
engine, or who discovers a new process or novel
application of power or force, or a new combination
of any kind, if he can establish and make
good his claim before the officers appointed by
law to inquire into such matters; shall be pro-
tected in the exclusive use, manufacture, or sale
of such invention or discovery, as far as the law
can so protect, for it can not be denied that
beyond a certain point the law is of no avail to
protect a man in such exclusive use or sale
indeed, the law is unable to protect the govern-
ment itself against the aggressions of those to
whom the law makes such aggression profitable.
Let the tax on any one article of importation be
made so high as to render smuggling profitable,
and behold with what difficulty smuggling is put
;