MONTGOMERY COUNTY. 3489

cipal on maturity is guaranteed by Montgomery and Prince George's
Counties, Maryland"; and such endorsement shall be signed on each of
said bonds by the president and secretary or the Clerk of the Board of
County Commissioners of each County within twenty days after the bonds
are presented by said Commission to them for endorsement. In the event
of any liability under the above guarantee, such liability for each County
shall be in such proportion as the assessable basis of that part of such
County within the District bears to the assessable basis of the whole of
said District. In the event that the seven cent (Yc) tax provided for in
Section 593 of this subtitle is levied and collected only throughout that
portion of the District within Montgomery County the said bonds shall
be guaranteed as to the payment of principal and interest by the County
Commissioners of Montgomery County, which guarantee shall be endorsed
on each of said bonds in the following language: "The payment of interest
when due and of the principal on maturity is guaranteed by Montgomery
County, Maryland"; and such endorsement shall be signed on each of
said bonds by the President and Clerk of the Board of County Commis-
sioners of Montgomery County within twenty days after the bonds are pre-
sented by said Commission to them for endorsement, provided, however,
that in the event that the seven cent (7c) tax provided for in Section 593
of this subtitle is levied and collected throughout the District the proceeds
of the sale of bonds issued under this Section shall be expended in that
portion of each County within the District in such proportion as the
assessable basis of such portion of either County bears to the assessable
basis of the whole of said District; and provided further that in the event
that the seven cent (7c) tax provided for in Section 593 of this subtitle
is levied and collected only throughout Montgomery County the proceeds
of the sale of bonds issued under this Section shall be expended within
that portion of the District within Montgomery County and upon the
recommendation of the members of the Commission from Montgomery
County.

1927, ch. 448, sec. 9. 1929, ch. 286, sec. 9.

593. For the purpose of retiring the bonds authorized to be issued by
this Act and the payment of interest thereon, there shall be levied against
all assessable property within that portion of the district located in Mont-
gomery County by the County Commissioners of Montgomery County,
annually, a tax sufficient to pay the interest on said bonds as it becomes
due and to pay the principal thereof as they mature, such tax in any one
year not to exceed seven (7c.) cents upon each one hundred dollars ($100)
of assessed valuation of the assessable property within that portion of the
district located in Montgomery County. Said tax shall be determined,
levied, collected and paid over in the following manner: at least thirty
days before the tax levying period of each year, the County Commis-
sioners of Montgomery County shall certify to the Commission the whole
valuation of assessable property within that portion of the district located
within Montgomery County. Said Commission shall then determine the