There is no doubt that at first sight they are uninteresting. Many sleep most of the day, as a rule, and they cannot be got out of their snug little dens in the Zoological Gardens during visiting hours except by force, and then they look dazed and stupid. But a careful observation opens out much that is extremely interesting in their habits, and shows how remarkably their limbs and bodies are adapted for a singular and nocturnal life. Take an example:--Some Lemuroida, which live in Caffraria and South-eastern Africa, are called “Galagos” by the natives, and the name has been adopted by zoologists. One of these is of an uniform dark brown colour, and the tail is long, cylindrical, and woolly, the ears being large, rounded, and black, and it is called the Black, or Garnett’s Galago. There is nothing to be made of its habits during the day, but if any one is affected with sleeplessness, and desires a domestic pet that would enliven the dreary midnight hours, then forthwith let him purchase a specimen, if possible a pair of them. They will rest quietly enough and contented in their berths during the day, but only let them have freedom in the chamber for a while at night, with a Cat or Dog for companion, and, _presto!_ the dull hours will be merry. The following is Mr. Bartlett’s (Superintendent of the Zoological Gardens) experience in a letter addressed to one of us:--“The other night I took an opportunity of letting one of these interesting creatures--Garnett’s Galago--have his liberty in my room, and I assure you I was well repaid by his performance. Judge my utter astonishment to see him on the floor, jumping about _upright_ like a Kangaroo, only with much greater speed and intelligence. The little one sprang from the ground on to the legs of tables, arms of chairs, and indeed on to any piece of furniture in the room; in fact, he was more like a sprite than the best pantomimist I ever saw. What surprised me most was his entire want of fear of Dogs and Cats. These be boldly met and jumped on at once, and in the most playful manner hugged and tumbled about with them, rolling over and over, hanging on their tails, licking them on the head and face. I must add, however, that now and again he gave them a sharp bite, and then bounded off, full of fun at the noise they made in consequence of the sly nip he had inflicted. This active trickery he never appeared to tire of; and I was myself so pleased on witnessing the droll antics of the creature that the night passed and it was near daybreak before I put a stop to his frolics by catching and consigning him to his cage. In bounding about on the level ground, his jumps, on the hind-legs only, are very astonishing, at least several feet at a spring, and with a rapidity that requires the utmost attention to follow. From the back of a chair he sprang, with the greatest ease, on to the table, four feet distance. He was delighted with a little wooden ball, which he rolled about and played