1214 LAWS OF MARYLAND. [Ch. 731]

8. No child under the age of sixteen years shall be employed,
permitted or suffered to work in any capacity in, about or in
connection with any processes in which dangerous or poisonous
acids are used; nor in the manufacture or packing of paints,
colors, white or red lead; nor in soldering; nor in occupations
causing dust in injurious quantities; nor in the manufacture or
use of dangerous or poisonous dyes, nor in the manufacture
or preparation of compositions with dangerous or poisonous
gases; nor in the manufacture or use of compositions of lye in
which the quantity thereof is injurious to health; nor on scaf-
folding; nor in heavy work in the building trades; nor in any
tunnel or excavation; nor in, about or in connection with any
mine, coal breaker, coke oven, or quarry; nor in assorting, man-
ufacturing or packing tobacco; nor in operating any automobile,
motor car or truck; nor in a pool or billiard room; nor in any
other occupation dangerous to the life and limb, or injurious to
the health or morals of such child; nor shall any child under the
age of sixteen years be employed upon the stage of any theatre
or concert hall or in connection with any theatrical performance
or other exhibition or show; provided, that the Chief of the
Maryland Bureau of Statistics and Information may issue a
permit allowing a child under such age to appear in connection
with theatrical performances or other exhibition or show, for a
period not exceeding two weeks, when, in his opinion, such per-
mit is justified by the evidence presented to him.

9. No child under sixteen years of age shall be employed,
permitted or suffered to work in, about or in connection with
any establishment or occupation named in section 4 and 5 unless
the person, firm or corporation employing such child procures
and keeps on file, and accessible to any attendance officer,
inspector of factories, or other authorized inspector or officer
charged with the enforcement of this act, the employment cer-
tificate as hereinafter provided, issued to said child; and keeps
two complete lists of the names, together with the ages, of all
boys under sixteen years of age and all girls under eighteen
years of age employed in or for such establishment or in such
occupation, one on file and one conspicuously posted near the
principal.entrance of the place or establishment in which such
children are employed; and unless such employment, permis-
sion or sufferance to work in, about or in connection with said
establishments or occupations shall be in accordance with the
terms and regulations laid down for said employment certifi-
cates as hereinafter provided.

10. Attendance officers, inspectors of factories, or other
authorized inspectors or officers charged with the enforcement