(4) A State farther down the river may not make, or allow to be made, in its territory any constructions or establishments which might cause danger of flooding a State farther up the river.
(5) The foregoing rules are applicable in the same way to the case in which streams of water flow from a lake, which is situated in one territory, into the territory of another State or the territories of other States.
(6) It is recommended that the States concerned appoint common permanent Commissions which may give decisions, or at least may give their advice, when such new establishments are built, or when such modifications are made in the existing establishments, as may influence the flow of the stream of water situated on the territory of another State.
IV LAKES AND LAND-LOCKED SEAS
Vattel, I. § 294—Hall, § 38—Phillimore, I. §§ 205-205A—Twiss, I. § 181—Halleck, I. p. 170—Moore, I. §§ 135-143—Bluntschli, § 316—Hartmann, § 58—Heffter, § 77—Caratheodory in Holtzendorff, II. pp. 378-385—Gareis, §§ 20-21—Liszt, § 9—Ullmann, §§ 88 and 106—Bonfils, Nos. 495-505—Despagnet, No. 407—Mérignhac, II. 587-596—Pradier-Fodéré, II. Nos. 640-649—Nys, I. pp. 447-450—Calvo, I. §§ 301, 373, 383—Fiore, II. Nos. 811-813, and Code, Nos. 279 and 1000—Martens, I. § 100—Rivier, I. pp. 143-145, 230—Mischeff, "La Mer Noire et les détroits de Constantinople" (1901)—Hunt in A.J. IV. (1910), pp. 285-313.
Lakes and land-locked seas State Property of Riparian States.
§ 179. Theory and practice agree upon the rule that such lakes and land-locked seas as are entirely enclosed by the land of one and the same State are part of the territory of this State. Thus the Dead Sea in Palestine is Turkish, the Sea of Aral is Russian, the Lake of Como is Italian territory. As regards, however, such lakes and land-locked seas as are surrounded by the territories of several States, no unanimity exists. The majority of writers consider these lakes and land-locked seas parts of the surrounding territories, but several[309] dissent, asserting that these lakes and seas do not belong to the riparian States, but are free like the Open Sea. The practice of the States seems to favour the opinion of the majority of writers, for special treaties frequently arrange what portions of such lakes and seas belong to the riparian States.[310] Examples are:—The Lake of Constance,[311] which is surrounded by the territories of Germany (Baden, Würtemberg, Bavaria), Austria, and Switzerland (Thurgau and St. Gall); the Lake of Geneva, which belongs to Switzerland and France; the Lakes of Huron, Erie, and Ontario, which belong to British Canada and the United States; the Caspian Sea, which belongs to Persia and Russia.[312]
[309] See, for instance, Calvo, I. § 301; Caratheodory in Holtzendorff, II. p. 378.
[310] As regards the utilisation of the flow of such lakes and seas, the same is valid as that concerning the utilisation of the flow of rivers; see above, § [178a].
[311] See Stoffel, "Die Fischerei-Verhältnisse des Bodensees unter besonderer Berücksichtigung der an ihm bestehenden Hoheitsrechte" (1906).