PHILLIPS LEE GOLDSBOROUGH, GOVERNOR. 1449

42. Stonecutting or dressing; marble works; manufacture
of artificial stone; steel building and bridge construction; in-
stallation of elevators, fire escapes, boilers, engines or heavy
machinery; bricklaying, tile-laying, mason work, stone setting,
concrete work, plastering; and manufacture of concrete blocks;
structural carpentry; painting, decorating or renovating; sheet
metal work; roofing; construction, repair and demolition of
buildings and bridges; plumbing, sanitary or heating engineer-
ing; installation and covering of pipes or boilers.

43. In addition to the employments set out in the preceding
paragraphs, this Act is intended to apply to all extra-hazardous
employments not specifically enumerated herein.

SEC. 33. Any employer, his employe or employes engaged
in works not extra-hazardous within the meaning of this Act
may, by their joint election, filed with the Commission, accept
the provisions of this Act and such acceptances when approved
by the Commission, shall subject them to the provisions of this
Act to all intents and purposes as if they had been originally
included in its terms.

Any workman of the age of sixteen years and upwards may
himself exercise the election hereby authorized. The right of
election hereby authorized shall be exercised on behalf of any
workman under the age of sixteen years by. his parent or guar-
dian. Nothing herein shall be construed to apply to workmen
of less than the minimum age prescribed by law for the em-
ployment of minors in the occupation in which such workman
shall be engaged.

The provisions of this Act shall apply to employers and
employes engaged in intrastate and also in interstate or for-
eign commerce, for whom a rule of liability or method of com-
pensation has been or may be established by the Congress of
the United States, only to the extent that their mutual connec-
tion with intrastate workday and shall be clearly separable
and distinguishable from interstate or foreign commerce, ex-
cept that any such employer and any of his workmen only
in this State may, with the approval of the Commission, and
so far as not forbidden by any Act of Congress, voluntarily
accept the provisions of this Act by filing written acceptances
with the Commission, which shall subject the acceptors to the
provisions of this Act to all intents and purposes as if they
had been originally included in its terms.