It shall be the duty of the manager of every mine, with respect to each report, record or other item of information which, in pursuance of this Act or regulations, is entered in a book which by or by virtue of this Act is required to be provided for that purpose by the owner of the mine, either to read it himself forthwith or to secure that it is read forthwith by some other competent person and that there is promptly brought to his notice any matter disclosed by the report, record or other item of information which either is of an abnormal or unusual nature as regards the mine or, not being of such a nature, is of a kind which will or may necessitate the taking of any steps by the manager or any other person.