For the purposes of the foregoing provisions of this Part of this Act and of any byelaws made thereunder—
(a)The expression " child " shall, as from the first day of September, nineteen hundred and thirty-nine, mean instead of a person under fourteen years of age, a person under fifteen years of age;
(b)The expression " performance of a dangerous nature" includes all acrobatic perforniances and all performances as a contortionist;
(c)The expression " street trading " includes the hawking of newspapers, matches, flowers and other articles, playing, singing or performing for profit, shoe-blacking and other like occupations carried on in streets or public places ;
(d)A child under obligation to attend school shall be deemed to attain the age of fourteen or fifteen on the date prescribed for terminating school attendance next succeeding the fourteenth or fifteenth anniversary of his birth, as the case may be;
(e)A person who assists in a trade or occupation carried on for profit shall be deemed to be employed notwithstanding that he receives no reward for his labour; and
(f)A chorister taking part in a religious service or in a choir practice for a religious service shall not, whether he receives any reward or not, be deemed to be employed.