are defined as: (a) Steam or motor boats less than 10 metres or 34 feet long; (b) All boats propelled by sail or oars; (c) Pontoons not being in tow.

21. All small craft must leave the course clear to steamers

and are not to cross their course. If necessary they are to draw into the bank and when they cross the current they are to leave the way clear for navigation.

22. All sailing boats are also to have oars on board ready for use. Such boats when they meet a steamer are to get out their oars and leave the course clear.

23. The situation of each ferry and the method employed shall be sanctioned by the permanent Commission.

The ferries may be constructed and managed by both Governments, or they may be let to and constructed by private persons. The tariff on each ferry shall be fixed by the permanent Commission.

The revenue from the ferries that are let shall be assigned to the budget of the river.

The cost of constructing and of maintaining a Government ferry shall be divided between the two Governments, but the profits credited to the budget of the river.

The terms of the present article do not apply to the ferry at Gobwen.

24. The contracting Governments recognise the necessity of special police for the river.

The numbers, the duties and the mode of enlisting police officers shall be determined by the permanent Commission, with the approval of the two Governors.

The sphere of action of this police shall be confined to the river and the banks only, to report on infractions of the orders of the permanent Commission and all infractions of the common law. The police shall not have power to arrest, but only to report to the nearest magistrate. They may however intervene to prevent crime or violence.

The police shall be under the orders of the permanent Commission, but subject to the laws of the two colonies.

25. In all cases not contemplated by these regulations, all floating craft shall observe the international rules for avoiding collisions at sea.

(L.S.) RENNELL RODD. (L.S.)

S. SONNINO.

ANNEX IV.

Regulations for the service of the waters of the Juba for
irrigation purposes.

ART. 1. The British and Italian Governments recognise the reciprocal advantage of proceeding in common in compiling identic laws and regulations to govern the diversion of water on both banks of the Juba for irrigation, motive power, &c.

With this object the two Governments have agreed upon the general lines which follow, with which the subsequent common

regulations to be issued upon eventual proposals of the permanent Commission shall be co-ordinated.

2. The Governments of British East Africa and Italian Somaliland shall begin by establishing hydrometers of wood: the former at Gobwen, Yenti, Mofi, Alexandra and Serenli; the latter at Giumbo, Margherita, Gelib, Bardera and Lugh; either of them may establish other hydrometers at any other spot on the banks where there is a European in residence.

These hydrometers shall be temporary in character and their precise position shall be determined (under the orders of the two Commissions. British and Italian) by agreement between two officers, one British and one Italian where possible, and by one or the other alone, where the co-operation of both is not possible.

All these hydrometers shall be graduated in metres and centimetres; the English ones shall also have on one surface the graduations in feet and inches. The Commissioners from the two sides are to agree as to the zero level (zero equals maximum level of water) for each of the above-mentioned hydrometers, basing such zero on some indication at no great distance from the spot, either a recognised high-water level at a determined point, or at the altitude of the bank if the water reaches to such a height and overflows it, or if the bank is well defined and level at the summit.

Subsequently the permanent Commission shall set up permanent hydrometers and shall co-ordinate their levels with the average sea level at the mouth of the river or at such other place as the directors of the two topographical surveys of the two Governments elect.

The hydrometers, whether temporary or permanent, are to be read every day at 8 A.M. and 5 P.M., and the readings shall be recorded in a register and not on loose sheets. As there are radiotelegraphic stations at Giumbo, Bardera and Lugh, the reading of the height of the water when the full head passes Lugh and Bardera will be very useful to steamers navigating the river, and for the purpose of ascertaining when the inundation and irrigation channels will receive water.

3. The system of irrigation with ditches actually used by the natives on either bank of the stream should be maintained subject to the adequate protection of the river banks and waterhead works, which should be enforced without unnecessary severity towards the natives.

The Secretaries of the permanent Commission shall make an approximative calculation of the ditches existing on either side, and register them, aiming at compiling eventually an accurate list of such ditches with a registration of their dimensions.

4. The watering places of the Somalis are to be numbered and registered and the rights of the Somalis protected.

5. Any person desiring to construct a canal or irrigation channel must submit his application through the Italian or British Commissioner in the manner prescribed to the Governor. Should the Governor not consider the application worthy of being examined he will refuse it, and will inform the Provincial Commissioner of the decision taken, and the latter in turn will inform the applicant. If the Governor considers the application

worthy of consideration he will refer to the permanent Commission for further steps or investigation.

All proposals regarding canals and irrigation channels are to be accompanied by detailed plans and estimates.

Every new canal or channel duly sanctioned by the proper authority is to be registered by the permanent Commission and the register kept by the Secretaries.

Each Government may construct canals or channels for purposes other than of irrigation, with a depth of 5 feet under zero level and of unlimited length, without the intervention of the permanent Commission. All these Government canals and channels shall be registered at the offices of the Secretariat.

6. To protect the irrigation canals and channels by structures at the water heads, wooden or masonry apertures at the intake and the outlet, concrete, iron, steel, or earthenware pipes shall be adequate. All such works shall be approved by the permanent Commission.

7. Suction tubes for pumping machinery for irrigation may be put in position at any depth of the river.

The pumping plant may be either placed on the river bank or on a vessel floating on the surface, which must be moored to the nearest bank.

The position of the suction tubes and the pumping plant as above must be approved by the permanent Commission so that it may not disturb or obstruct navigation.

Pumping plant before being set up must be sanctioned by the permanent Commission and registered in the registers of the Secretariat.

At the present time it is not necessary to fix the quantity of water which may be taken and the number of the pumps; but in the future the permanent Commission may regulate this.

All pumping plant and machinery must be inspected by an engineer before being taken over for use, and afterwards annually. The results of such inspection shall be registered at the offices of the Secretariat. If the engineer is not a Government officer, the Governors have powers to fix the indemnity to be paid him for the inspection.

8. It is advisable that irrigation works on a large scale should not be sanctioned without a careful investigation by the permanent Commission, seeing that they are liable to curtail the annual period during which the river is navigable.

9. If the report of the medical authority on the irrigation system decides that there is danger to public health by insufficiency of appropriate outlets for the excess water in the irrigated area, then, upon recommendation from the permanent Commission, the Governor in whose province it is may oblige the owner to construct at his own expense the necessary outlets and drainage channels recommended by the permanent Commission. The procedure of the permanent Commission in such cases must conform to what is laid down in the sanitary regulations for the two banks. The rules in this article apply to both Government and private projects. 10. All projects for using the water of the Juba for motive power must be sent to the permanent Commission in accordance with the procedure laid down in Article 5 of the present regulations, [CXII] 3 D

and must be accompanied by explanations, plans and specifications of the projects in question. This rule also applies to water to be taken for mills and factories.

(L.S.) RENNELL RODD. (L.S.) S. SONNINO.

EXCHANGE OF NOTES between Great Britain and Italy relative to the further renewal of the Arbitration Agreement between the two Countries, signed at Rome, February 1, 1904.-London, January 31, 1919.*

(No. 1.) The Italian Ambassador in London to Earl Curzon of Kedleston.

(Translation.) My Lord,

London, January 31, 1919. IN reply to your Excellency's note of the 27th December last, I have the honour to inform you that the Government of the King are also ready to renew for five years from the date of its expiration the Arbitration Agreement concluded between the British Government and the Italian Government on the 1st February, 1904, and renewed in January 1914 by an exchange of notes between myself and your Excellency's predecessor.

Should your Excellency agree to this procedure, it will be understood that this note and your Excellency's reply will serve to place on record the understanding arrived at on the subject between our two Governments.

I have, &c.
IMPERIALI.

(No. 2.)-Earl Curzon of Kedleston to the Italian
Ambassador in London.

Your Excellency,

Foreign Office, January 31, 1919. I HAVE the honour to acknowledge the receipt of your note of this day's date informing me that the Italian Government are prepared to renew, for a further period of five years, the Arbitration Agreement concluded between the Governments of Great Britain and Italy on the 1st February, 1904, and renewed by the exchange of notes of the 31st January, 1914, on the understanding that His Majesty's # C Treaty Series, No. 2 (1919)." + Vol. XCVII, page 57.

Vol. CVII, page 408.

Government are equally prepared to agree to such further renewal.

I have the honour, on behalf of His Majesty's Government, to accept this proposal, and the present exchange of notes between your Excellency and myself is accordingly. regarded by them as placing upon record the understanding arrived at between our respective Governments in the

matter.

I have, &c.

CURZON OF KEDLESTON.

CONVENTION between Great Britain and Liberia supplementary to the Convention respecting the Boundary between Sierra Leone and Liberia, signed at Monrovia, January 21, 1911.-London, June 25, 1917.*

[Ratifications exchanged at London, March 31, 1921.]

WHEREAS by Article VII of the Convention signed at Monrovia on the 21st day of January, 1911, between the United Kingdom and Liberia respecting the boundary between Sierra Leone and Liberia, it was agreed that the respective Governments would facilitate an arrangement between the Colony of Sierra Leone and the local authorities of the Republic for the settlement of all disputes that might arise between the tribes on either side of the frontier;

And whereas His Majesty the King of the United Kingdom of Great Britain and Ireland and the President of the Republic of Liberia are desirous of entering into an Agreement in pursuance of the said Agreement;

They have, with a view of negotiating such an arrangement, named as their respective representatives, that is to

say:

His Majesty the King of the United Kingdom of Great Britain and Ireland and of the British Dominions beyond the Seas, Emperor of India; the Right Honourable Arthur James Balfour, Member of the Order of Merit, a Member of Parliament, His Majesty's Principal Secretary of State for Foreign Affairs; and

The President of the Republic of Liberia: J. P. Crommelin, Esq., Envoy Extraordinary and Minister Plenipotentiary of the Republic of Liberia at the Court of St. James; * 66 Treaty Series, No. 7 (1921).” + Vol. CIV, page 181. [CXII]

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