THE CHOPS OF THE CHANNEL, AND HOW THEY ARE LIGHTED. 171 colours and the kind of light given, until now, | Lizard—twenty-one miles N.w. of St. Agnes, when we possess lamps which have the power of} Scilly, and eight miles s.x. of the Longships. The throwing their ray twenty-seven miles into the} water around it is twenty, fathoms deep, except on

| surrounding darkness, it would seem that little | one side, where there is a long shoal, and it is was left to be desired. The difficulty of erecting | exposed to the full force of the Atlantic and a tre-

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a lighthouse in mid-ocean will be better realized if| mendous tideway. To give some idea of the vio- we give a brief history of one of our most recent | lence of winds and waves on such a spot, we may ones, viz., that on the Wolf rock, which is marked | mention that an iron beacon which was designed in our chart. This rock is in the course of ships | and ordered to be erected on it in 1836 eould not coming down either the English or the Bristol | be completed until 1840, and cost 11,2984. In Channel. It is twenty-three miles w.s.w. of the | those five years, although every opportunity of