958 WORKMEN'S COMPENSATION. [ART. 101

38. Manufacture of men's or women's clothing, white wear, shirts,
collars, corsets, hats, caps, furs or robes.

39. Power laundries; dying, cleaning or bleaching.
40. Printing, photo-engraving, stereotyping, electrotyping, litho-
graphing, embossing; manufacture of stationery, paper, cardboard,
boxes, bags, or wall paper; and book-binding.

41. The operation, otherwise than on tracks, on streets, highways, or
elsewhere of -cars, trucks, wagons or other vehicles, and rollers and
engines, propelled by steam, gas, gasoline, electric, mechanical or other
power.

42. Stone cutting or dressing; marble works; manufacture of arti-
ficial stone; steel building and bridge construction; installation of
elevators, fire escapes, boilers, engines or heavy machinery; brick-lay-
ing, 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 engineering; installation and covering o'f pipes or boilers.

43. In addition to the employments set out in the preceding para-
graphs, this Article is intended to apply to all extra-hazardous employ-
ments not specifically enumerated herein.

1914, ch. 800, sec. 83.

33. Any employer, his employe or employes engaged in works not
extra-hazardous within the meaning of this Article may, by their joint
election, filed with the Commission, accept the provisions of this Article
and such acceptances when approved by the Commission, shall subject
them to the provisions of this Article 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 guardian. Nothing herein shall be
construed to apply to workmen of less than the minimum age prescribed
y law for the employment of minors in the occupation in which such
workman shall be engaged.

The provisions of this Article shall apply to employers and employes
engaged in intra-state and also in interstate or foreign commerce, for
whom a rule of liability or method of compensation has been or may

be established by the Congress of the United States, only to the extent
that their mutual connection with intra-state work may and shall be
clearly separable and distinguishable from interstate or foreign com-
merce, except 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 Article by filing written acceptances with the Commission, which