"Some of our companions had to eke out a haul with crawfish," says the traveler Esterman, "but our own string of sundries included a puzzle for naturalists. We had caught some twenty brook trout, absolutely indistinguishable from the species found in the head waters of the Tennessee River. Where did they come from? Had they crossed the Gulf of Mexico and ascended the rapids of half a hundred rivers, or had Nature copied her own handiwork in such details as the small dark dots below each red spot, and the occasional breaks in the lines of the silver-white keel streaks?" The perch of the forest rivers include several nest-building varieties, and the sportsmen of Kingston, Jamaica, often amuse themselves with target practice at a species of rock fish that come clear out of the water and bask, like coots, on the harbor cliffs. With every mile farther south the number and variety of the finned aborigines become more infinite, and the fishermen of the estuary of San Juan de Porto Rico alone catch pompanos, mullets, cavalli, red snappers, chiquillos (a kind of sardelles), sea bass, dorados, skip-jack, angelfish, skate, ray, sheepshead, garfish, torpedo-fish, devilfish or giant ray, cobia, hogfish, croakers, shark, and coryphenes. [Illustration: FLYING FISH (_Exocoetus volitans_); FLYING GURNARD OR FLYING ROBIN (_Cephalacanthus volitans_). (From Baskett's Story of the Fishes.)] The tiger of the sea, the great white shark, occasionally visits the harbor waters of Cuba, and has been known to seize barefooted peons, surf-bathing horses in the next neighborhood of Morro Castle, and drag them under so suddenly that their companions were unable to account for their disappearance till the foam of the breakers became flecked with blood. [Illustration: BUTTERFLY FISH.] That champion of marine man-eaters is as smooth as a hypocrite, and hides its double row of horrible fangs under a slippery nose, while the little butterfly fish tries its best to disguise its helplessness with a crest of spiny fins. Its length rarely exceeds four inches, and it can be handled with impunity, but its spines are just rigid enough to entangle it in tufts of gulf weed, and in company of equally tiny sea horses and goldfish, it can often be seen in the aquariums of the Jamaica seaport towns. [_To be continued._] A STUDY OF LUIGI LUCCHENI (ASSASSIN OF THE EMPRESS OF AUSTRIA). BY CESARE LOMBROSO. [Illustration: FIG. 1.--LUIGI LUCCHENI.]