rial judge's charge to the jury.[57]

Statutes prohibiting the coercion of employers to hire unneeded
employees,[58] establishing minimum wages and maximum hours of service
for persons engaged in the production of goods for interstate
commerce,[59] forbidding undue or unreasonable restraints of trade,[60]
making it unlawful to build fires near any forest or inflammable
material,[61] banning the receipt of contributions by members of
Congress from federal employees for any political purpose,[62] or
penalizing the copying or taking of documents connected with the
national defense, with intent, or reason to believe that they are to be
used to the injury of the United States or to the advantage of a foreign
nation,[63] have been held to be sufficiently definite to be
constitutional. A provision penalizing excessive charges in connection
with loans from the Home Owners Loan Corporation was not rendered
indefinite by the exception of "ordinary fees for services actually
rendered,"[64] nor was a statute forbidding misstatement of the quantity
of the contents of a package wanting in certainty by reason of a proviso
permitting "reasonable variations."[65]

The constitutional right to be informed of the nature and cause of the
accusation entitles the defendant to insist that the indictment apprise
him of the crime charged with such reasonable certainty that he can make
his defense and protect himself after judgment against another
prosecution on the same charge.[66] No indictment is sufficient if it
does not allege all of the ingredients which constitute the crime. Where
the language of a statute is, according to the natural import of the
words, fully descriptive of the offense, it is sufficient if the
indictment follows the statutory phraseology;[67] but where the elements
of the crime have to be ascertained by reference to the common law or to
other statutes, it is not sufficient to set forth the offense in the
words of the statute; the facts necessary to bring the case within the
statutory definition must also be alleged.[68] If an offense cannot be
accurately and clearly described without an allegation that the accused
is not within an exception contained in the statutes, an indictment
which does not contain such allegation is defective.[69] Despite the
omission of obscene particulars, an indictment in general language is
good if the unlawful conduct is so described so as reasonably to inform
the accused of the nature of the