1734 LAWS OF MARYLAND. [CH. 991

necessary, in conjunction with any amounts to its credit in
the current interest and sinking fund account provided for in
Section 6 of this sub-title plus such additional amount as the
Commission may estimate that it will be able to collect out of
the benefit assessments therefor levied by it but not yet paid
and any other funds. then available for the purpose, to meet
the interest on said bonds as it becomes due and to pay the
principal thereof as the bonds mature, and said tax shall be
determined, levied, collected and paid over in the manner
following, that is to say, at least sixty days before the tax
levying period of each year, the County Commissioners shall
certify to the Metropolitan Commission the whole valuation
of the assessable property within each such sub-district. The
Commission shall then determine in the manner above pre-
scribed the amount which it deems necessary to be raised dur-
ing the ensuing year for the payment of interest and the pro-
portionate part of the principal of all outstanding bonds and
the amounts to be paid into the sinking fund for said bonds
in any one year, to be determined by the usual table of
redemption of bonds by annual deposit in a sinking fund on
interest, and after deducting all amounts in hand or in
contemplation applicable to payments of interest and prin-
cipal on said bonds as hereinbefore and hereinafter in the Act
provided, it shall determine the number of cents per $100. 00
necessary to raise the said amount for each such sub-district
and shall certify the same to the Board of County Commis-
sioners. The said County Commissioners in their next annual
levy shall levy said tax on all land and improvements and all
other property assessed for county tax purposes within the re-
spective sub-district, which tax shall be levied and collected
and have the same priority right, bear the same interest and
penalties and in every respect be treated the same as county
taxes. The tax so levied for the ensuing year shall be col-
lected by the tax collecting authorities and every sixty days
they shall remit the Whole amount of the tax so collected to
the Commission. From the money so received, together with
the amount in hand to the credit of said bond fund, the Com-
mission shall first pay all interest on said bonds as it becomes
due, and shall then deposit the residue of said moneys in some
bank or banks in said County to the joint credit of the County
Commissioners and the Commission, as a joint fund to be known
as the "Metropolitan Sinking Fund Account", which -shall be
retained and utilized for payment of principal of said bonds as
they mature. The Commission and the County Commissioners
shall, from time to time invest said sinking fund in any bond
or bonds in which savings or trust funds are authorized to be
invested by National banks of U. S. Treasury Department, or