15. Every infringement of the provisions of this act, not otherwise provided for, shall be punishable by a fine of not less than $20 nor more than $100, and costs, for each offence, and, on failure to pay such fine and costs, by imprisonment for not more than one month in the house of detention.
R. S. 1964, c. 79, s. 14; 1969, c. 21, s. 35.