21. Whenever a voluntary deposit is made of any amount for the payment of any debt evidenced by a writing which is registered, the debtor shall deposit for cancellation a duplicate of the deposit receipt at the registry office where the claim is registered. The registrar shall make an entry of such deposit in the margin of the register opposite the title or the writing under which the claim exists; and such deposit and entry shall have the same effect as regards the cancelling of the registration of the claim, as the entry of a discharge from the creditor for a like amount would have had.
R. S. 1964, c. 64, s. 70.