Robinson, J.,

delivered the opinion of the court.

On the 17th of October, 1863, the President issued a proclamation, calling upon the Governors of the several States, to “ raise and have enlisted for the various regiments in the field, from their respective States, their quotas of three hundred thousand men.”

The States failing to furnish their quotas under this call, the President issued the following order:

Executive Mansion, February 1, 1864.

Ordered, that a draft for five hundred thousand men, to serve for three years, or during the war, be made on the loth of March next, for the military service of the United States, crediting and deducting therefrom, so many as may *have been enlisted or drafted into the service prior to the 1st day of March, and not heretofore credited.

(Signed) ABRAHAM LINCOLN.

By order of the Secretary of War.

E. D. TOWNSEND, Asst. Adft Gen’l.

*283On the 16th of February, 1864, the following Ordinance was passed by the Mayor and City Council of Baltimore:

Section 1. Be it enacted and ordained by the Mayor and City Council of Baltimore, That the sum of six hundred thousand dollars, or so much thereof as may be necessary, be and the same is hereby appropriated to be used exclusively as a bounty fund, and to be paid to such persons as may have volunteered, as well as those who may volunteer, to fill any regiments, battalions and companies now in the field, heretofore raised in the City of Baltimore, or in the several regiments 01 artillery or cavalry companies raised, or to be raised, in the City of Baltimore, and have been or'may be mustered into the service of the United States as a part of the quota of said city, under the late' call of the President of the United States, for five hundred thousand men.

Section 2. And be it enacted and ordained, That every non-commissioned officer, private, bugler, drummer and fifer who may have volunteered, or who may volunteer, and who may be mustered into the service of the United States, in any of the regiments, or artillery or cavalry companies that have been, or that may be, raised in the City of Baltimore, and who may be recognized by the Governor of the State and the Assistant Provost Marshal General of the United States as a part of the quota of the City of Baltimore, under the late call of the President of the United States, for -five hundred thousand men, and none others, shall be entitled to the sum of two hundred dollars- — one hundred dollars payable on being mustered into the service, etc.

Section 3. And be it enacted and ordained, That on receiving satisfactory evidence that any party claiming the benefits *of this ordinance has been mustered into the service' of the United States as a part of the quota of the City of Baltimore, under the call of the'President of the United States as aforesaid, etc.

It is admitted that the appellant enlisted at Baltimore City, in Company G, Fourth Regiment of United States Colored Troops, a regiment raised in the city and credited as part of the quota of the city under the call of the President for five hundred thousand men. That he was mustered into the service on the nth of August, 1863, and was honorably discharged *284in May, 1866. The right of the appellant, under this statement of facts, to recover the bounty of two hundred dollars, is the question submitted to this court. With regard to the policy of the Ordinance, whether expedient or inexpedient, just or unjust, are questions ■ with which we have nothing to do. If passed by a corporation within the scope of its delegated powers, it is valid and must be so declared by this court; assuming then, in this case, the Ordinance to be a valid exercise of legislative power, — and on this point we express no opinion, — it is our duty to interpret it according to the intention of the framers of the law. “ The only rule,” says Chief Justice Tindal, “ for the construction of Acts of Parliament, is that they should be construed according to the intent of the Parliament which passed the Act.” Dukedom of Sussex, 8 Lond. Jur. 795. To ascertain this we are first to consider the words employed, and interpret them according to their plain, ordinary and natural import, having some regard to their order and grammatical arrangement. If they are clear, precise and unambiguous, the Legislature must be understood to mean what it has plainly expressed. On the part of the appellant it is insisted that the Ordinance acts retrospectively, and includes within its terms, all who had volunteered, and who were credited upon the quota of the city under the late call, without reference to the time of their enlistment. Now it is a universal rule, that no statute will be construed to act retrospectively, unless such a purpose be plainly expressed.

*Is there anything in this Ordinance which thus plainly declares such an intention? Provision is made in the first section for a bounty fund of six hundred thousand dollars, “to be paid to such persons as may have volunteered as well as those who may volunteer to fill up any regiments,” “ raised or to be raised in the City of Baltimore, and have been or may be mustered into the service of the United States as a part of the quota of said city, under the late call of the President of the United States for 500,000 men.” Two classes of volunteers are here provided for, those who have volunteered and those who may volunteer, and who are mustered into the service and credited to the quota of the city, under the late call of the President. Is not express provision here made that the fund is to be paid to persons coming within one of the two classes ? Are not the *285words “ have been or may be mustered into the service of the United States as part of the quota of said city, under the late call,” used to qualify and designate those who are to be entitled to the bounty? Can such language be interpreted to include those who were not mustered into the service under the late call of the President — persons who had enlisted prior, and without any reference to the proclamation? If such had been the intention, why qualify the sentence by adding, “ under the late call of the President.” But we are told, that this only refers to “ the quota of the city.” If so, what disposition is to be made of that part of the same sentence which says,- “ have been or may be mustered into the service of the United States as a pari of the quota.” It was admitted that the appellant enlisted prior to the call of the President, and he could not therefore have been mustered into the service as a part of the quota of said city under, the call.

So in the second section, “ Every non-commissioned officer” “ who may have vohfnteered, and who may volunteer, and who may he mustered into the service,” “ and who may be recognized by the Governor of the State,” “ as a part of the quota of the City of Baltimore, under the late call of the President,” “ and none others, shall be entitled to the sum of two ^hundred dollars.” Express provision is made for the retroactive operation of the Ordinance, but only as to those “ who may have volunteered, or who may volunteer, and who may be mustered into the service,” “and who may be recognized by the Governor” “as part of the quota,” “under the late call.” To entitle a party to claim the bounty of two hundred dollars,-under this section, it declares he must be mustered into the service of the United States as a part of the quota of the city under the late call.- ■ “None others” stall be entitled, is the language used.

And again, the third section ■ provides, “ That on receiving satisfactory evidence, that, any party claiming the benefit of this Ordinance, has been mustered into the service” “ as a part of the quota of the city ” “ under the call of the President,” “ the Register ” shall pay, etc. What is here made the very basis of the claim? Not that'the party has volunteered — not that he was mustered into the service, but that he was mustered into service as a part of the quota of the city, under the *286late call. Will it be contended that the appellant comes up to the standard of proof required by this section? Was he mustered in, as a part of the city’s quota, under the late call?

If, however, any doubt can arise from the language of the Ordinance, let us look at the preamble, which, in cases of ambiguity, Chief Justice Dyer says, “is the key to open the minds of the makers of the Act.” Here it is declared to be an Ordinance “to provide for the defense of the city by encouraging enlistments” “in the several regiments now in the field, or now being raised, by order of the President,” “ under the late call,” “ by paying bounty to such volunteers as have enlisted, or may enlist, in the City of Baltimore, to make up the quota apportioned to said city.” By paying bounty to whom? To those who have enlisted, or may enlist, to make up the quota apportioned to said city.

This construction of the Ordinance is strengthened when viewed in the light of the surrounding circumstances under which it was passed, and to which it owed its origin. It was *passed on the 16th of February, 1864. On the 1st of March the draft was ordered to take place. All efforts to furnish the quota apportioned to the city had failed. It was iu this emergency, and to avert the draft then impending, that the Ordinance was passed. To induce persons to volunteer, by the payment of bounties, and thus furnish the city’s quota, was the manifest purpose of the law — not to pay those who had enlisted prior to the call, because, by General Order No. 35, the quota of the city had already been diminished to the extent of their enlistment.

If, therefore, in the interpretation of this Ordinance, we are to be governed by the language in which it is expressed, or if such be doubtful, by the preamble, or by the circumstances to which it owed its origin, and the causes which led to its enactment, or by all combined, we are of opinion that the appellant does not come within its terms. Nor is this construction ineq*uitable to the appellant. He had enlisted long prior to its passage, and whatever were his motives in enlisting, he cannot be said to have acted upon the faith of any promises made or inducements held out by the appellee. To the supposed equity in the plaintiff’s claim, from the fact that the city was credited with his enlistment, it is sufficient to say, that it is our *287duty to declare what the law is, and not what it ought to be. Such being our interpretation and construction of the Ordinance, the judgment must be affirmed.

Judgment affirmed.