706 LAWS OF MARYLAND. [CH. 356

may, under like restrictions, issue temporary bonds, with or
without coupons, exchangeable for definitive bonds upon the
issuance of the latter. The Commission may also provide for
the replacement of any bond which shall become muti-
lated or be destroyed or lost. Such revenue bonds may be
issued without any other proceedings or the happening of any
other conditions or things than those proceedings, conditions
and things which are specified and required by this sub-title.
In the discretion of the Commission, revenue bonds of a single
issue may be issued for the purpose of paying the cost of any
one or more projects.

111. ALL MONEYS TO BE TRUST FUNDS. All moneys received
pursuant to the authority of this sub-title, whether as pro-
ceeds from the sale of revenue bonds, as grants or other con-
tributions, or as tolls and revenues, shall be deemed to be trust
funds, to be held and applied solely as provided in this sub-
title. The Commission shall, in the resolution authorizing the
issuance of bonds or in the trust indenture, provide for the
payment of the proceeds of the sale of the bonds and the tolls
and revenues to be received to any officer, agency, bank or trust
company, who shall act as Trustee of such funds, and hold and
apply the same to the purposes hereof, subject to such regula-
tions as this sub-title and such resolution or trust indenture
may provide.

112. TRUST INDENTURE. In the discretion of the Commis-
sion, each and any issue of such revenue bonds may be secured
by a trust indenture by and between the Commission and a
corporate trustee, which may be any trust company or bank
having the powers of a trust company within or outside of the
State. Such trust indenture may pledge or assign tolls and
revenues to be received, but shall not convey or mortgage any
bridge or tunnel or any part thereof. Either the resolution
providing for the issuance of revenue bonds or such trust in-
denture may contain such provisions for protecting and en-
forcing the rights and remedies of the bondholders as may be
reasonable and proper and not in violation of law, including
covenants setting forth the duties of the Commission in rela-
tion to the acquisition, construction, improvement, mainte-
nance, operation, repair and insurance of the project or proj-
ects, and the custody, safeguarding and application of all
moneys, and may also provide that any bridge or tunnel shall
be constructed and paid for under the supervision and ap-
proval of consulting engineers employed or designated by the
Commission and satisfactory to the original purchasers of the
bonds issued therefor, and may also require that the security
given by contractors and by any depositary of the proceeds
of the bonds or revenues or other moneys be satisfactory to