Professor Ball relates an interesting anecdote of these monkeys. He said that when at Malwa Tal, a lake where he spent a day, he was warned that when passing under a certain landslip which slopes to the lake, he would be liable to have stones thrown at him by the monkeys. As he thought this might be only a traveler’s tale, he took pains to go to the spot in order to see what had given rise to the story. As he approached the base of the landslip, he saw a number of Rhesus monkeys rush to the sides and across the top, and presently pieces of loosened stone and shale came tumbling down where he stood. He soon satisfied himself that this was not accidental, for he distinctly saw one monkey, industriously with both forepaws, push the loose shingle off a shoulder of rock. He then tried the effect of throwing stones at them, but this made them quite angry and the amount of fragments which they set rolling was speedily doubled. This adventure caused Professor Ball to believe that there may be some truth in the stories related in regard to monkeys throwing fruit at people from the tree tops, and yet even about monkeys it is not always best to credit all one hears. John Ainslie. AN ANIMAL TORPEDO. The gymnotus, or electric eel, is a common denizen of the stagnant pools and sluggish lagoons of the Llanos of Venezuela. It is known to the natives under the more suggestive name of arimna or something that deprives of motion.