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 fishing-boats, and disabled craft; for he must be familiar with these in order that he may understand the signals and movements of the vessels and so avoid collision. It is unnecessary in a work of this description to compare the new regulations with the old. That has been admirably done, by the way, from the legal point of view as well as from the sailor's, by Mr. H. Stewart Moore in his work on the subject published by J. D. Potter.

The following are the new regulations:—

PRELIMINARY.

These rules shall be followed by all vessels upon the high seas and in all waters connected therewith, navigable by sea-going vessels.

In the following rules every steam vessel which is under sail and not under steam is to be considered a sailing vessel, and every vessel under steam, whether under sail or not, is to be considered a steam vessel.

The word 'steam vessel' shall include any vessel propelled by machinery (e.g. electric launches).

A vessel is 'under way' within the meaning of these rules, when she is not at anchor, or made fast to the shore, or aground.

RULES CONCERNING LIGHTS, ETC.

The word 'visible' in these rules, when applied to lights, shall mean visible on a dark night with a clear atmosphere.

The rules concerning lights shall be complied with in all weathers from sunset to sunrise, and during such time no other lights which may be mistaken for the prescribed lights shall be exhibited.