Certificates of death, of vaccination, of notification of infectious diseases, tuberculosis, industrial diseases, and births, and of insanity can be procured already printed in the forms prescribed by the law. =Certificates of the Cause of Death.=--A medical practitioner who has been in attendance during the last illness of a person is legally bound to give a certificate stating, “to the best of his knowledge and belief, the cause of death.” If he be unaware of the cause of death, or have reason to believe that death was not due to natural causes, or the result of violence, he may refuse the certificate. In such a case it is customary and desirable for the medical man to notify the Coroner of the circumstance as soon as possible. If he have no reasonable cause to prevent him supplying the certificate, he is liable to a penalty not exceeding forty shillings. In England and Ireland it is given to a relative of the deceased or legally authorised person, who must deliver it to the Registrar. In Scotland the doctor sends it to the Registrar direct. Not more than one certificate should be given. No fee is chargeable. The information on the certificate should be as clear, complete, and accurate as possible. =Notification of Births.=--When the authorities of any district have adopted the Notification of Births Act of 1907, it is the duty of any person who has been in attendance on the mother at the time, or within six hours after the birth, to give notice of the birth in writing to the Medical Officer of Health of the district in which the child is born. The necessary certificate must be filled in and posted to the Medical Officer of Health within thirty-six hours of the time of birth. The certificate applies to any child dead or alive born after the twenty-eighth week of pregnancy. Should the relatives of, or other attendant upon the mother, fail to notify the birth, it is the duty of the medical attendant to do so, failing which he may be fined not exceeding twenty shillings. =Notification of Infectious Diseases.=--By the Act of Parliament 1889, every medical practitioner attending on or called in to visit the patient, shall forthwith, on becoming aware that the patient is suffering from an infectious disease to which the Act applies, send to the Medical Officer of Health of the district a certificate stating the name of the patient, the situation of the building, and the infectious disease from which in the opinion of such medical practitioner the patient is suffering. The notifiable diseases are: smallpox, cholera, diphtheria, membranous croup, erysipelas, scarlatina or scarlet fever, typhus, typhoid, enteric, relapsing, continued and puerperal fever.