Medical unfitness in mines bars continued employment after examination, subject to appeal and limited temporary continuation. Persons declared unfit for employment in mines on the basis of medical examination must not be employed, or continue to be employed, after thirty days from the date of examination unless an appeal has been filed. A medical practitioner or appellate medical board may recommend continuation for up to six months if the disability is not serious enough to interfere with normal duties, enabling further treatment and re-examination for fitness.