Service of notice or other document

Every notice, order or other document required by this Act to be served on, or sent to, any person, shall, if practicable, be served personally on such person or, if he cannot be found, the notice, order or document may be left at his usual or last known place of abode with an adult member of his family or an adult servant or agent, or may be sent by registered post, or may be affixed to some conspicuous part of his usual or last known place of abode and shall thereupon be deemed to have been duly served or sent.