Sullivan v. Mayor, Aldermen & Commonalty of City of New York

We do not agree with the general term, that the clause in section 11 of the tax levy act of 1869 is unconstitutional and void. That act is a local act. It must be confined to one subject, which must be expressed in its title. If it relates to more than one subject, or if it fails in its title *492to express that, it is void. The distinction between the provisions in that kind of act which fall within and without invalidity is well shown by the two cases of Huber agt. The People (49 N. Y., 132) and Astor in re (50 N. Y., p. 363).

The tax levy acts are for the purpose of providing the moneys needful…