
58 U.S. 204 (1854)
17 How. 204
THE UNITED STATES, PLAINTIFF,
v.
LINDSEY NICKERSON, JUNIOR.
Supreme Court of United States.

*206 It was argued by Mr. Cushing, (attorney-general,) for the United States, and by Mr. Lothrop, for the defendant.
*208 Mr. Justice CURTIS delivered the opinion of the court.
This case comes before us upon a certificate of division of opinion by the judges of the circuit court of the United States for the district of Massachusetts.
At the March term, 1854, of the district court of the United States for the district of Massachusetts, Nickerson was indicted for the crime of perjury. The indictment charged, that in order to obtain the allowance of bounty money, on account of the employment of a vessel in the cod fishery, of which vessel he was the agent, he made oath before the collector of the district of Barnstable, where the vessel was enrolled and licensed, that a certain paper, produced by him to the collector, was the original agreement made with the fishermen employed on board the vessel during the fishing season then last past; that three fourths of the crew so employed were citizens of the United States, or not subjects of any foreign prince or state; and that these statements were false, and known to the defendant to be so when he made the oath.
Upon this indictment Nickerson was tried and acquitted.
At the May term, 1854, of the circuit court for the district of Massachusetts, Nickerson was again indicted, and to this last indictment pleaded specially his former acquittal, and the plea was demurred to.
The question raised by this demurrer, and upon which the opinions of the judges were opposed, is, whether the same evidence, which is competent and essential to support the indictment in the circuit court, might have been admitted in support of the former indictment in the district court.
The demurrer admits that the defendant is the same person charged by the former indictment, and that the oath alleged in the former indictment to have been taken, is the same oath alleged in this indictment. It appears from a comparison of the two indictments that the same occasion of taking the oath is alleged in both; that occasion being to obtain an allowance of money from the United States, as bounty, on account of the *209 employment of a vessel called The Silver Spring, in the cod fishery, during the season then last past.
Each indictment contains, substantially, the same allegation respecting the authority of the collector to administer the oath; that allegation being that the collector had competent power and authority to administer the same. Under the 19th section of the crimes act of April 30, 1790, 1 Stat. at Large, 116, this averment would let in any legal evidence of the lawful power of the collector to administer the oath.
The false swearing alleged in each indictment is the same, and the only question is, whether the indictment in the district court was so drawn as to preclude the United States from offering evidence to prove that the defendant knowingly and wilfully swore falsely that the paper produced was the original agreement, and that three fourths of the crew were citizens.
The argument is, that the former indictment, by its terms, limited the government to proof of false swearing in an oath required to be taken by the act of July 29, 1813, 3 Stats. at Large, 49; that this act does not require either the verity of the agreement with the crew, or the citizenship of three fourths of the crew, to be sworn to; and consequently, that neither of the perjuries charged could be proved under the former indictment.
The 7th section of the act of 1813 is as follows: "That the owner or owners of every fishing vessel of twenty tons and upwards, his or their agent or lawful representative, shall, previous to receiving the allowance made by this act, produce to the collector, who is authorized to pay the same, the original agreement or agreements which may have been made with the fishermen employed on board such vessel, as is hereinbefore required, and also a certificate to be by him or them subscribed, thereon mentioning the particular days on which such vessel sailed and returned on the several voyages or fares she may have made in the preceding fishing season, to the truth of which he or they shall swear or affirm before the collector aforesaid."
It is argued that this requires an oath to the truth of the certificate only, and not to the verity of the agreement.
This depends upon the meaning of the relative pronoun "which." Does it refer to and include both papers to be produced to the collector, or only one of them? It may refer only to the one last mentioned, or to both. Grammatically it is capable of either construction.
Considering the nature of the act, the objects which congress had in view, and the mischiefs to be guarded against, we are of opinion that it was intended to require an oath to the verity of both papers.
This section of the law is not penal; it is directory merely. *210 It requires certain acts to be done in order to obtain an allowance of public money. The nature of the act, therefore, does not require a strict interpretation, rigidly confined to what is so clearly expressed as to admit of no doubt. It calls for such an interpretation as will guard the public treasury from fraud, so far as the language employed by congress, when fairly construed, is capable of doing so.
The inducement to the payment of these bounties was, the public policy of training a body of native seamen, by an industrious pursuit of the cod fishery during a fixed portion of the year. To accomplish this, it was deemed important that the seamen should participate directly in the profits of the voyage, in the manner pointed out by the act of June 19, 1813, 3 Stats. at Large, 2. And accordingly, the 8th section of the act in question provides that no vessel shall be entitled to bounty, unless an agreement should be made with the fishermen in conformity with that act. The production of the agreement was therefore the production of a paper, as essential to the claim as the certificate of the times of the departure and return of the vessel; and the verity of the agreement is as essential to the justice and legality of the claim, and to the accomplishment of the ends designed by congress, as the verity of the certificate. It is apparent, also, that the former, as well as the latter, may be false, and that the collector has no better means of knowledge of the truth or falsehood of the paper purporting to be the agreement, than he has of the truth or falsehood of the certificate. The mischiefs to be guarded against were therefore the same.
The case, therefore, is one where the law requires two documents to be produced to a public officer, to constitute a title to an allowance of public money. The verity of both is essential to the justice and legality of the claim. The officer has no means of testing the verity of either, except what is given by this law. Congress has considered it proper that an oath should be taken by the applicant. The question is, whether this security of an oath was intended to be confined to one of the documents. The language employed is capable of such a construction, but it is also capable of meaning that the security of an oath was to extend to both. In our judgment, the latter is to be deemed to have been intended by congress; and we therefore hold that so much of the first indictment as charged that an oath as to the agreement was required by the act of 1813, was correct in point of law. But this does not dispose of the whole question; because there can be no pretence that the act of 1813 required an oath to the fact that three fourths of the crew were citizens. In point of fact, there was no requirement on the subject *211 of the citizenship of the crew when the act of 1813 was passed, nor until the act of March 1, 1817, (3 Stats. at Large, 351;) and the argument on the part of the United States is, that as the former indictment was limited to an oath required to be taken by the act of 1813, the defendant could not be tried thereon for false swearing as to the citizenship of the crew. But we are of opinion that the former indictment was not thus limited. The particular allegation supposed to have that effect, is as follows: 
"Which said oath so taken by the said Nickerson, jr., was required to be taken by the owner or agent of said fishing vessel, under and by virtue of an act of congress of the United States of America, approved July 29, 1813, and reënacted February 9, 1816, and in a matter and proceeding then and there required by law, in order to obtain the allowance aforesaid for said fishing vessel, it being then and there material and required by the act aforesaid, and by force of the statutes of the said United States therein provided, in order to obtain said allowance of money, that the owner of said fishing vessel, or his agent or representative, previous to receiving such allowance, should swear as aforesaid to the truth of the aforesaid declarations."
The pleader here not only refers to the act of 1813; but also avers that the oath was taken, "and in a matter and proceeding then and there required by law, in order to obtain the allowance aforesaid for said fishing vessel." It is true, the whole allegation, if it is correctly copied in the record, is somewhat confused but, according to any construction which we have been able to put upon it, it does not confine the requirement of the oath to the act of 1813 only.
It was not necessary to aver in the indictment what act or acts of congress required the oath to be taken. The averment that it was taken by the owner or agent to obtain an allowance of bounty, and the description of the oath which was taken, and of its occasion, were the only matters of fact necessary to be alleged to show the materiality of the oath, and that it was an oath required by law. The court was bound to take judicial notice of the requirements of all acts of congress respecting it. It was competent for the government, under these averments of facts, to rely on any act of congress which required the oath to be taken, without referring to it.
This was not a question respecting the authority of the collector to administer the oath. That, as has already been observed, was correctly averred in both indictments, pursuant to the act of 1790. And under that general averment of competent authority, any laws and any fact constituting that authority might have been shown. The question here was, whether such *212 an oath as is described in the indictment, being taken before a collector who had competent authority to administer it, for the purpose of obtaining an allowance of bounty money, was an oath which, if wilfully false, would subject the defendant to be punished as for perjury. And we do not think this question was so narrowed, by the passage above extracted from the former indictment, that evidence of an oath required or authorized by any other act besides that of 1813 could not be given under that indictment; and we order it to be certified accordingly.

Order.
This cause came on to be heard on the transcript of the record from the circuit court of the United States for the district of Massachusetts, and on the point or question on which the judges of the said circuit court were opposed in opinion, and which was certified to this court for its opinion, agreeably to the act of congress in such case made and provided, and was argued by counsel. On consideration whereof it is the opinion of this court that the special plea pleaded by the defendant is a good plea in bar to the indictment; whereupon, it is now here ordered and adjudged by this court that it be so certified to the said circuit court.
