(1) A registered society or branch may contribute to the funds and take part by delegates or otherwise in the government of any other registered society or registered branch of a society, as provided in the rules of that first-named society or branch, without becoming a branch under this Act of that other society or branch.
(2) This section shall in respect of contributing to the funds and taking part in the government of a medical society, that is to say, a society for the purpose of relief in sickness by providing medical attendance and medicine, extend to any registered trade union or branch of a registered trade union.
(3) A registered society or trade union or branch shall not withdraw from contributing to the funds of any such medical society except on three months notice to the society and on payment of all contributions accrued or accruing due to the date of the expiration of the notice.