AERONAUTICS 181

(f) In any suit in rem for the enforcement of the mortgage lien the
court may appoint a receiver and in its discretion authorize the receiver
to operate the mortgaged airship or other aircraft. The receiver may be
authorized or directed by the court to take possession of the mortgaged
airship or other aircraft notwithstanding the fact that the airship or other
aircraft is in the possession or under the control of any person claiming
a possessory common-law lien.

(g) Upon the sale of any mortgaged airship or other aircraft by order
of an equity court of this State in any suit in rem for the enforcement of
the mortgage lien, all pre-existing claims and/or liens to such airship or
other aircraft, including any possessory common law lien of which the
lienor is deprived under the provisions of sub-section (f) shall terminate
and shall forthwith attach, in like amount and in accordance with their
respective priorities, to the proceeds of the sale.

(h) For each sale, contract of conditional sale, conveyance, mortgage
or assignment of mortgage recorded hereunder, the State Aviation Com-
mission shall charge a recording fee of five dollars ($5. 00), payable at the
time of receipt for record. No paper (except certificates of discharge of
mortgage indebtedness) shall be received for record hereunder unless ac-
companied by such fee.

An. Code, 1924, sec. 49. 1931, ch. 403, sec. 2.

56. If any section or any portion of this sub-title shall be held to be
unconstitutional the validity of the remaining sections or portions thereof,
and the applicability of said section or portion to other facts or circum-
stances shall not be impaired.

An. Code, 1924, sec. 50. 1931, ch. 403, sec. 3.

57. This sub-title shall take effect June 1, 1931; provided, however,
that if the Congress of the United States shall pass any legislation con-
travening this sub-title, or any legislation similar thereto and covering the
same subject-matter, this sub-title shall become void and of no effect to
the extent of such contravention and/or similarity of subject-matter.

Airport Zoning.

1937, ch. 383, sec. 51.

58. For the purpose of securing safety from death or bodily injury for
"Aeronauts" and "Passengers", as defined in this Article, from dangerous
obstruction of air space in the vicinity of public Airports or Landing
Fields, as authorized and provided for in said Article; and to promote
the public order, health and safety by providing unobstructed air space
for the safe descent, landing, ascent and operation of aircraft while using
such public Airports or Landing Fields, the height of buildings and other
structures in the vicinity of such public Airports and Landing Fields is
regulated and restricted as hereinafter provided.

1937, ch. 383, sec. 52.

59. (Safety Zone. ) For the purposes set forth in Section 58, and con-
sidering, among other things—

(a) Requirements and facilities necessary to secure the safe de-
scent, landing, ascent and operation of aircraft using public Airports