Opinion by

The question involved in the present case is whether the Act of July 7, 1913, P. L. 694, which provides the method by which a borough may become incorporated into a city of the third class and requires that a majority of the electors shall vote in favor of the same at a special election held for this purpose, is in violation of Art. XY, Sec. 1, of the Constitution. The section in question reads as follows:

“Cities may be chartered whenever a majority of the electors of any town or borough, having a population of at least ten thousand, shall vote at any general election in favor of the same.”

It is argued for appellants that the word “may” is used in a permissive sense and not- as a constitutional *583mandate; that is to say the power to become incorporated by a particular method does not exclude by implication or otherwise some other method equally effective. As applied to the language of the Constitution above quoted, we cannot accept this as the proper interpretation of the words used. It will be observed that the word “may” is used in connection with the power to grant charters to cities, and is separate and apart from the direction relating to the holding of an election to ascertain the will of the qualified electors, as to which the Constitution provides that the electors “shall vote at any general election” and this method of ascertaining the will of the majority is mandatory. Clearly, therefore the Constitution requires the vote of the electors of any borough, desiring to become incorporated as a city of the third class, to be taken at a general election. We need not stop to inquire why the framers of the organic law required this to be done; it is sufficient for our purposes to know that the constitution does so provide and we are not at liberty to disregard what has been so plainly written.

In the present ease a special election was ordered and held. A majority of the electors voted in favor of being incorporated as a city of the third class at this special election, which was clearly in violation of the constitutional provision requiring the vote to be taken at a general election.

It is argued that if the Constitution be construed to require the vote to be taken at a general election, it will mean that a vote upon the question of becoming incorporated as a city of the third class can only be taken once in two years, because general elections for State offices under the present system are only held in even-numbered years — a delay which should be avoided if possible. In our opinion this result does not necessarily follow. In the light of the constitutional amendments adopted for the purpose of providing for the holding of municipal elections throughout the Commonwealth in November in *584odd-numbered years, we can see no reason why municipal elections thus held should not be deemed general elections within the spirit and purpose of the Constitution as amended and the statutory provisions relating thereto.

What has been said about the Act of 1913 only refers to that provision which authorizes the holding of a special election for the purpose of ascertaining the will of the electors. The general subject matter of the act is clearly within the scope of legislative power, and the exercise of that power is limited only by the Constitution, which in the present case forbids the holding of a special election for the purpose of ascertaining the will of a majority of the electors.

Judgment affirmed.