The notice of assignment given to the debtor must be such as to apprise him of the fact of assignment.1 If it is vague and uncertain2 or if it is in a language unknown to the debtor, and it is taken away by the assignee who tells the debtor that it is a note, which the assignee wishes the debtor to sign,3 it is not sufficient. Mere failure to give the month and date of an order by a depositor on a savings bank does not invalidate the notice.4 Mere knowledge that the attorney of the adversary party is to receive a certain per cent of the recovery is not notice that the transaction amounts to an assignment.5