If the northern latitudes of the Atlantic have their dangers of ice, the southern latitude, especially the Caribbean Sea, in common with all intertropical oceans, have their dangers of fire. The hurricanes of those latitudes are generally accompanied by visitations of fearful thunder-storms, in which many a good ship is enveloped and destroyed. In the midst of a summer sea a clipper ship may be suddenly assailed by one of those tremendous conflicts of the elements, of the approach of which the silver finger of the barometer, unless carefully watched, has scarcely had time to give warning. However prepared by good seamanship and an active crew, there she must lie on the vexed ocean, her tall masts so many suction-tubes to draw down upon her the destructive fire from heaven. In his Report to the Admiralty, laid before Parliament in 1854, entitled "Shipwrecks by Lightning," Sir William Snow Harris--whose exertions to find a remedy for this evil are above all praise--states that in six years, between 1809 and 1815, forty sail of the line, twenty frigates, and ten sloops were so crippled by being struck as in many cases to be placed for a time _hors de combat_. In fifty years there were 280 instances of serious damage to ships in the British navy. Of these the _Thisbey_ frigate, off Scilly, in January, 1786, affords a melancholy example. The log represents her "decks swept by lightning, people struck down in all directions, the sails and gear aloft in one great blaze, and the ship left a complete wreck." In the merchant service the list of disasters is fearful. Since the year 1820 thirty-three ships, varying from 300 to 1,000 tons, have been totally destroyed by lightning, and forty-five greatly damaged.