The term of service is determined by an agreement between mistress and maid. The usual custom is to take the applicant for a week's trial; if, at the expiration of that time, both are satisfied, the arrangement continues from week to week, if the payments are weekly. In households in which monthly payments are preferred the maid is hired by the month. The agreement entered into is nothing more nor less than a legal contract, and not to be lightly violated. When serving by the week the maid is entitled to, and must also give, three days' notice; when by the month a week's notice is required, or if for any reason her mistress wishes her to leave at once, she may pay her one week's wages. If the maid leaves suddenly and without giving notice, in the middle of her term, she forfeits all claim to wages which have accrued since her last payment. If discharged unjustly and without sufficient cause before the expiration of her term, she is entitled to her wages in full; but if discharged without notice because of intoxication, immorality, dishonesty, arrant disobedience, or permanent incapacity from illness, she can claim nothing. It is customary with some housekeepers to start the new maid on a comparatively low salary, with the promise of an increase of perhaps fifty cents per month, in case she proves herself worthy, till the maximum is reached. This is often an incentive to good service.