318                              LAWS OF MARYLAND                      [CH. 117

sponsible bidder or bidders therefor for cash, if the prices bid are
adequate, in the judgment of the Board of Public Works, and when
two or more bidders make the same bid, and such bid is the highest
and the certificates so bid for by the highest responsible bidder are
in excess of the whole amount of the certificates offered for sale, such
bonds or certificates of indebtedness shall be awarded to such re-
sponsible bidders bidding the same price in a ratable proportion;
or if any insufficient price shall be bid for them, they may be subse-
quently disposed of under the direction of the Board of Public Works,
at a private sale upon the best terms they can obtain for the same;
provided they are not sold at private sale for less than par and
accrued interest.

Sec. 4. And be it further enacted, That the sum of Twenty Thou-
sand Dollars ($20,000), or so much thereof as may be necessary, is
paid by the Treasurer of the State upon the warrant of the Comp-
troller out of the proceeds of said bonds or certificates of indebtedness,
for the payment of the expense of engraving, printing and other
outlays connected with the issue of the loan here authorized, and for
the payment of the advertising directed by this act, and all other
incidental expenses, connected with the execution of its provisions in
connection with said loan.

Sec. 5. And be it further enacted, That the actual cash proceeds
from the sale of certificates of indebtedness to be issued under this
act shall be paid to the Treasurer of the State upon the warrant of
the Comptroller, and such proceeds shall be used exclusively for the
following purposes:

1.   The Comptroller shall immediately upon the sale and the pay-
ment for said certificates, first, return to and credit to the treasury
for a sum equivalent to the amount expended, as provided in Section
4 of this act.

2.   The remainder of the proceeds of said loan shall be credited on
the books of the State Treasury Department to be expended for the
construction, improvement and development of such airports and air-
port facilities in any of the counties or municipalities in the State or
by the City of Baltimore, including the acquisition of such property
as may be required in connection therewith, (1) which qualify for
federal assistance under the Federal Airport Act of 1946, as amended;
(2) for which federal participation shall not exceed fifty percentum
(50%) of the cost thereof and the participation of the State of Mary-
land under this act shall not exceed twenty-five percentum (25%) of
the cost thereof; and (3) which are publicly owned, operated, and
controlled. The participation of the State of Maryland under this
act shall be granted only for projects or any part or item thereof
which qualify for federal assistance under the Federal Airport Act
of 1946, as amended. Such proceeds shall be expended upon the fol-
lowing terms and conditions:

(a) Whenever any one or more counties, municipalities or the
City of Baltimore desires to participate in the financial assistance
which is provided for under the terms and conditions of this act, the
governing body of each of the counties, or municipalities, or the
Mayor and City Council of Baltimore, thereof shall file a petition
with the State Aviation Commission with such information as the