LXVII

following reasons: First. The relation in which that clause stands to the other, which declares the general mode of appointing officers of the United States, denotes it to be nothing more than a supplement to the other, for the purpose of establishing an auxiliary method of appointment, in cases to which the general method was inadequate. The ordinary power of appointment is confined to the President and Senate jointly , and can therefore only be exercised during the session of the Senate; but as it would have been improper to oblige this body to be continually in session for the appointment of officers and, as vacancies might happen in their recess , which it might be necessary for the public service to fill without delay, the succeeding clause is evidently intended to authorize the President, singly , to make temporary appointments “during the recess of the Senate, by granting commissions which shall expire at the end of their next session.” Secondly. If this clause is to be considered as supplementary to the one which precedes, the vacancies of which it speaks must be construed to relate to the “officers” described in the preceding one; and this, we have seen, excludes from its description the members of the Senate. Thirdly. The time within which the power is to operate, “during the recess of the Senate,” and the duration of the appointments, “to the end of the next session” of that body, conspire to elucidate the sense of the provision, which, if it had been intended to comprehend senators, would naturally have referred the temporary power of filling vacancies to the recess of the state legislatures, who are to make the permanent appointments, and not to the recess of the national Senate, who are to have no concern in those appointments; and would have extended the duration in office of the temporary senators to the next session of the legislature of the state, in whose representation the vacancies had happened, instead of making it to expire at the end of the ensuing session of the national Senate. The circumstances of the body authorized to make the permanent appointments would, of course, have governed the modification of a power which related to the temporary appointments; and as the national Senate is the body, whose situation is