 The complainants also claimed, under the stipulations of the mortgages, the amount of certain premiums of insurance paid by them.By an amended bill making the mayor and aldermen of Jersey City a defendant, the complainants alleged that the city claimed a lien on the mortgaged premises prior to that of the mortgages for certain water rents for supplying water to the occupants of the same for the year 1871, and from thence to the time of filing the bill; that this claim was made under an act of the legislature time of filing the bill; that this claim authorizing the construction of waterworks for the city, and the act revising the city charter, passed in March 1871.The bill denied the validity of this claim, and averred that those portions of the said acts which purported to give such a priority had the effect to deprive the complainant of its property in the mortgaged premises without due process of law, and were in violation of the Constitution of the United States as well as that of New Jersey, and the complainant prayed for a foreclosure and sale of the lot in question as against all the defendants.