any of the effects which this insect, taken inwardly, produces on men, dogs, and cats. A German physician, who made the Hedgehog a particular object of study, gave it strong doses of prussic acid, of arsenic, of opium, and of corrosive sublimate, none of which did it any harm. The Hedgehog in its natural state only feeds on pears, apples, and other fruits when it can get nothing it likes better. The Hedgehog hybernates regularly, and early in the summer brings forth from two to four young ones at a birth, which, at the time of their production, are blind, and have the spines white, soft, and flexible. The nest wherein they are cradled is said to be very artificially constructed, the roof being rain-proof. The flesh of the Hedgehog, when it has been well fed, is sweet and well flavoured, and is eaten on the Continent in many places. In Britain a few besides gipsies partake of it. The prickly skin appears to have been used by the Romans for hackling hemp. Gilbert White notes that when the Hedgehog is very young it can draw its skin down over its face, but is not able to contract itself into a ball, as the creature does, for the sake of defence when full grown. The reason, White supposes, is because the curious muscle that enables the Hedgehog to roll itself up into a ball has not then arrived at its full tone and firmness. Hedgehogs conceal themselves for the winter in their warm _hybernaculum_ of leaves and moss; but White could never find that they stored in any winter provision, as some quadrupeds certainly do. THE HIPPOPOTAMUS IN ENGLAND. In the year 1850 there was exhibited in London a living Hippopotamus, for many centuries the only instance of this extraordinary animal being seen in Europe. There is something irresistibly striking in seeing a living animal, not one of whose species we have before seen, and especially when that animal is a large one, as in the instance before us. We had been wonderstruck at forms of this creature in the old British Museum, where were two finely-preserved specimens. The Rhinoceros alive was, until of late years, very rare in England. In 1834 Mr. Cross paid some 1,500_l._ for a young Indian one-horned Rhinoceros, this being the only one brought to England for twenty years. He proved attractive, but slightly so in comparison with the expectation of a living Hippopotamus, never witnessed before in this country. The circumstances of his acquisition were as follows:--