tions observed in ports visited during the voyage; the measures taken to prevent the ingress and egress of rodents to and from the vessel; the measures which have been taken to protect the passengers and crew against mosquitoes, other insects, and vermin. The sanitary log will be signed by the master and medical officer of the vessel, and will be exhibited upon the request of any sanitary or consular officer. In the absence of a medical officer, the master shall record the above information in the log of the vessel, in so far as possible.

28. Equal or similar forms for quarantine declarations, certificate of fumigation, and certificate of vaccination, set forth in the Appendix, are hereby adopted as standard forms.

CHAPTER IV.-CLASSIFICATION OF PORTS.

29. An infected port is one in which any of the following diseases exist, namely, plague, cholera, yellow fever, or other pestilential disease in severe epidemic form.

30. A suspected port, is a port in which, or in the areas contiguous thereto, a non-imported case or cases of any of the diseases referred to in Article 23, have occurred within sixty days, or which has not taken adequate measures to protect itself against such diseases, but which is not known to be an infected port.

31. A clean port, Class A, is one in which the following conditions are fulfilled :·

(1.) The absence of non-imported cases of any of the diseases referred to in Article 23, in the port itself and in the areas contiguous thereto.

(2.)-(a.) The presence of a qualified and adequate health

staff.

(b.) Adequate means of fumigation.

(c.) Adequate personnel and material for the capture or destruction of rodents.

(d.) An adequate bacteriological and pathological laboratory.

(e.) A safe water supply.

(f.) Adequate means for the collection of mortality and morbidity data.

(g.) Adequate facilities for the isolation of suspects and the treatment of infectious diseases.

(h.) Signatory Governments shall register in the PanAmerican Sanitary Bureau those places that comply with these conditions.

32. A clean port, Class B, is one in which the conditions described in Article 31, (1) and (2) (a) above, are fulfilled, but in which one or more of the other requirements of Article 31 (2) are not fulfilled.

33. An unclassified port is one with regard to which the

information concerning the existence or non-existence of any of the diseases referred to in Article 23, and the measures which are being applied for the control of such diseases, is not sufficient to classify such port.

An unclassified port shall be provisionally considered as a suspected or infected port, as the information available in each case may determine, until definitely classified.

34. The Pan-American Sanitary Bureau shall prepare and publish, at intervals, a tabulation of the most commonly used ports of the Western Hemisphere, giving information as to sanitary conditions.

CHAPTER V.-CLASSIFICATION OF VESSELS.

35. A clean vessel is one coming from a clean port, Class A or B, which has had no case of plague, cholera, yellow fever, smallpox or typhus aboard during the voyage, and which has complied with the requirements of this code.

36. An infected or suspected vessel is

(1.) One which has had on board during the voyage a case or cases of any of the diseases mentioned in Article 35.

(2.) One which is from an infected or suspected port. (3.) One which is from a port where plague or yellow fever exists.

rats.

(4.) Any vessel on which there has been mortality among

(5.) A vessel which has violated any of the provisions of this code:

Provided that the sanitary authorities should give due consideration in applying sanitary measures to a vessel that has not docked.

37. Any master or owner of any vessel, or any person violating any provisions of this Code or violating any rule or regulation made in accordance with this Code, relating to the inspection of vessels, the entry or departure from any quarantine station, grounds or anchorages, or trespass thereon, or to the prevention of the introduction of contagious or infectious disease into any of the signatory countries, or any master, owner, or agent of a vessel making a false statement relative to the sanitary condition of a vessel, or its contents, or as to the health of any passenger, or person thereon, or who interferes with a quarantine or health officer in the proper discharge of his duty, or fails or refuses to present bills of health, or other sanitary document, or pertinent information to a quarantine or health officer, shall be punished in accordance with the provisions of such laws, rules or regulations as may be or may have been enacted, or promulgated, in accordance with the provisions of this Code, by the Government of the country within whose jurisdiction the offence is committed.

CHAPTER VI.-THE TREATMENT OF VESSELS.

38. Clean vessels will be granted pratique by the port health authority upon acceptable evidence that they properly fulfil the requirements of Article 35.

39. Suspected vessels will be subjected to necessary sanitary measures to determine their actual condition.

40. Vessels infected with any of the diseases referred to in Article 23 shall be subjected to such sanitary measures as will prevent the continuance thereon, and the spread therefrom, of any of the said diseases to other vessels or ports. The disinfection of cargo, stores and personal effects shall be limited to the destruction of the vectors of disease which may be contained therein, provided that things which have been freshly soiled with human excretions capable of transmitting disease shall always be disinfected. Vessels on which there is undue prevalence of rats, mosquitoes, lice, or any other potential vector of communicable disease, may be disinfected irrespective of the classification of the vessel.

41. Vessels infected with plague shall be subjected to the following treatment:

(1.) The vessel shall be held for observation and necessary treatment.

(2.) The sick, if any, shall be removed and placed under appropriate treatment in isolation.

(3.) The vessel shall be simultaneously fumigated throughout for the destruction of rats. In order to render fumigation more effective, cargo may be wholly or partially discharged prior to such fumigation, but care will be taken to discharge no cargo which might harbour rats, (2) except for fumigation. (4.) All rats recovered after fumigation should be examined bacteriologically.

(5.) Healthy contacts, except those actually exposed to cases of pneumonic plague, will not be detained in quarantine. (6.) The vessel will not be granted pratique until it is reasonably certain that it is free from rats and vermin.

42. Vessels infected with cholera shall be subjected to the following treatment:

(1.) The vessels shall be held for observation and necessary treatment.

(2) Explanatory Footnote.-The nature of the goods or merchandise likely to harbour rats (plague suspicious cargo) shall, for purpose of this section, be deemed to be the following, namely: rice or other grain (exclusive of flour); oilcake in sacks, beans in mats or sacks; goods packed in crates with straw or similar packing material; matting in bundles; dried vegetables in baskets or cases; dried and salted fish; peanuts in sacks; dry ginger; curios, &c., in fragile cases, copra, loose hemp in bundles; coiled rope in sacking kapok, maize in bags, sea grass in bales; tiles, large pipes and similar articles; and bamboo poles in bundles.

(2.) The sick, if any, shall be removed and placed under appropriate treatment in isolation.

(3) All persons on board shall be subjected to bacteriological examination, and shall not be admitted to entry until demonstrated free from cholera vibrios.

(4.) Appropriate disinfection shall be performed.

43. Vessels infected with yellow fever shall be subjected to the following treatment:

(1.) The vessel shall be held for observation and necessary treatment.

(2.) The sick, if any, shall be removed and placed under appropriate treatment in isolation from Aedes aegypti mosquitoes.

(3.) All persons on board non-immune to yellow fever shall be placed under observation to complete six days from the last possible exposure to Aedes aegypti mosquitoes.

(4.) The vessel shall be freed from Aedes aegypti mosquitoes.

44. Vessels infected with smallpox shall be subjected to the following treatment:

(1.) The vessels shall be held for observation and necessary treatment.

(2.) The sick, if any, shall be removed and placed under appropriate treatment in isolation.

(3.) All persons on board shall be vaccinated. As an option the passenger may elect to undergo isolation to complete fourteen days from the last possible exposure to the disease.

(4.) All living quarters of the vessels shall be rendered mechanically clean, and used clothing and bedding of the patient disinfected.

45. Vessels infected with typhus shall be subjected to the following treatment:

(1.) The vessel shall be held for observation and necessary

treatment.

(2.) The sick, if any, shall be removed and placed under appropriate treatment in isolation from lice.

(3.) All persons on board and their personal effects shall be deloused.

(4.) All persons on board who have been exposed to the infection shall be placed under observation to complete twelve days from the last possible exposure to the infection.

(5.) The vessel shall be deloused.

46. The time of detention of vessels for inspection or treatment shall be the least consistent with public safety and scientific knowledge. It is the duty of port health officers to facilitate the speedy movement of vessels to the utmost compatible with the foregoing.

47. The power and authority of quarantine will not be

utilised for financial gain, and no charges for quarantine services will exceed actual cost plus a reasonable surcharge for administrative expenses and fluctuations in the market prices of materials used.

CHAPTER VII.-FUMIGATION STANDARDS.

48. Sulphur dioxide, hydrocyanic acid and cyanogen chloride gas mixture shall be considered as standard fumigants when used in accordance with the table set forth in the Appendix, as regards hours of exposure and of quantities of fumigants per 1,000 cubic feet.

49. Fumigation of ships to be most effective should be performed periodically and preferable at six months intervals, and should include the entire vessel and its lifeboats. The vessels should be free of cargo.

50. Before the liberation of hydrogen cyanide or cyanogen chloride, all personnel of the vessel will be removed, and care will be observed that all compartments are rendered as nearly gas tight as possible.

CHAPTER VIII.-MEDICAL OFFICERS OF VESSELS.

51. In order to better protect the health of travellers by sea, to aid in the prevention of the international spread of disease and to facilitate the movement of international commerce and communication, the Signatory Governments are authorised in their discretion to licence physicians employed on vessels.

52. It is recommended that licence not issue unless the applicant therefor is a graduate in medicine from a duly chartered and recognised school of medicine, is the holder of an unrepealed licence to practise medicine, and has successfully passed an examination as to his moral and mental fitness to be the surgeon or medical officer of a vessel. Said examination shall be set by the directing head of the national health service, and shall require of the applicant a competent knowledge of medicine and surgery. Said directing head of the national health service may issue a licence to an applicant who successfully passes the examination, and may revoke said licence upon conviction of malpractice, unprofessional conduct, offences involving moral turpitude or infraction of any of the sanitary laws or regulations of any of the Signatory Governments based upon the provisions of this Code.

53. When duly licensed as aforesaid, said surgeons or medical officers of vessels may be utilised in aid of inspection as defined in this Code.