Section 2 of article two of the amendments to the constitution is amended to read as follows: The house of representatives shall consist of not less than one hundred twenty-five and not more than two hundred twenty-five members, each of whom shall have attained the age of eighteen years and be an elector residing in the assembly district from which he is elected. Each assembly district shall be contiguous as to territory and shall elect no more than one representative. For the purpose of forming assembly districts no town shall be divided except for the purpose of forming assembly districts wholly within the town.