THE CAVES OF THE FI HATES.A letter from an ofiiccr on board the U. State*’ schr. Greyhound, after giving an account ot the defeat of the pirates at Cape C ruz, gives the following description of the caves of these freebooters:—“A cave, in which was found various articles of plunder, female dresses, and some human bones,the history of which, could it be known, would doubtless chill one's blood with horror. It enters at the base of a perpendicular cliff, directly under the position the pirates ocupied, running in a horizontal direction about 150 feet, from 6 to 7 feet high, and about the same in breadth, so intensely dark within that we were obliged to light several candles before wc could discern objects in the deep recesses and windings of the rocks. A large tree of lignunivita* grows at the enhance, casting a deep shade around, adding a still greater gloom to the appearance of this romantic spot. Several other caves are sear the same place, one of which enters on the top of the clids, which we descended into by ropes to the perpendicular distance of fifty or sixty lect, and finding room below capable of containing nearly 100 persons: all have traces of having been occupied. In some caves, articles of clothing were found, supposed to have been thrown in by the pirtftes in their retreat. Innumerable quantities of land crabs inhabit these caves, and which have the power of crawling along the sides Sc roof with the ease ofa fly. They retreated before us, and collected in the extremity of the caves in such quantities as to fill up large fissures in the rocks.”