930 WORK——HOURS OF, IN FACTORIES. [ART. 100

1912, ch. 731, sec. 21.

21. No child under the age of eighteen years shall be employed,
permitted or suffered to work in, about or in connection with blast fur-
naces, docks or wharves; or in the outside erection and repair of elec-
tric wires; in the running or management of elevators, lifts or hoisting
machines or dynamos; in oiling or cleaning machinery in motion; in
the operation of emery wheels or .any abrasive polishing or buffing
wheel articles of the baser metals or iridium are manufactured; at
switch tending, gate tending, track repairing or as brakemen, firemen,
engineers, motormen or conductors upon railroads, or as railroad tele-
graph operators; pilots, firemen or engineers upon boats and vessels;
cr in or about establishments where nitroglycerine, dynamite, duaulin,
guncotton, gunpowder or other high or dangerous explosives are manu-
factured, compounded or stored; or in the manufacture of white or
yellow phosphorus or phosphorus matches; or in any distillery, brewery
or other establishment where malt or alcoholic liquors are manufac-
tured, packed, wrapped or bottled; or in any theatre, concert hall, club
or other place of amusement wherein intoxicating liquors are sold.

1912, ch. 731, sec. 22.

22. No minor under twenty-one years of age shall be employed, per-
mitted or suffered to work in, about or in connection with any saloon
or bar room where intoxicating liquors are sold.

1912, ch. 731, sec. 23.

23. No female under eighteen years of age shall be employed, per-
mitted or suffered to work in any capacity where such employment com-
pels her to remain standing constantly.

1912, ch. 731, sec. 24.

24. In cities having a population of 20,000 or over no person
under the age of eighteen years shall be employed, permitted or suf-
fered to work as a messenger for telegraph, telephone or messenger
companies in the distribution, transmission or delivery of goods or
messages before six o'clock in the morning or after ten o'clock in the
evening of any day.

1912, ch. 731, sec. 25.

25. Every employer shall post and keep posted in a conspicuous
place in every establishment wherein any person under the age of
eighteen is employed, permitted or suffered to work, a printed copy
of the sections of this sub-title relating to hours of labor. Such copies
shall be prepared by the Maryland Bureau of Statistics and Informa-
tion and be furnished by it on application of such employer.

1912, ch. 731, sec. 26. 1914, ch. 27.

26. No boy under ten years of age and no girl under sixteen years
of age shall in any City having a population of 20,000 or over dis-