Page:United States Statutes at Large Volume 50 Part 2.djvu/394

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The only cases to which it does apply are when each of the two vessels is end on, or nearly end on, to the other; in other words, to cases in which, by day, each vessel sees the masts of the other in a line, or nearly in a line, with her own; and, by night, to cases in which each vessel is in such a position as to see both the side-lights of the other. It does not apply, by day, to cases in which a vessel sees another ahead crossing her own course; or by night, to cases where the red light of one vessel is opposed to the red light of the other, or where the green light of one vessel is opposed to the green light of the other, or where a red light without a green light, or a green light without a red light, is seen ahead, or where both green and red lights are seen any- where but ahead. ARTICLE 19. When two steam vessels are crossing, so as to involve risk of col- lision, the vessel which has the other on her own starboard side shall keep out of the way of the other. ARTICLE 20. When a steam vessel and a sailing vessel are proceeding in such directions as to involve risk of collision, the steam vessel shall keep out of the way of the sailing vessel. ARTICLE 21. Where by way of these Rules one of two vessels is to keep out of the way, the other shall keep her course and speed. NOTE.- When, in consequence of thick weather or other causes, such vessel finds herself so close that collision cannot be avoided by the action of the giving-way vessel alone, she also shall take such ac- ost, pp. 1302 , 1303. tion as will best aid to avert collision. (See Articles 27 and 29.) ARTICLE 22. Every vessel which is directed by these Rules to keep out of the way of another vessel shall, if the circumstances of the case admit, avoid crossing ahead of the other. ARTICLE 23. Every steam vessel which is directed by these Rules to keep out of the way of another vessel shall, on approaching her, if necessary, slacken her speed or stop or reverse. ARTICLE 24. Notwithstanding anything contained in these Rules, every vessel, overtaking any other, shall keep out of the way of the overtaken vessel. 1300 TREATIES