CLASS MAMMALIA. 37 row of trees, where I have no doubt it is frequently passed over as the commoner species by those in search of it. Like the last, it is much more common than is generally believed. I have had no difficulty in finding all I have required for the purposes of study. Doubleday says (Zool., 1843, p. 6) it is found at Epping, and I have no doubt it is distributed throughout the county, for I have seen it wherever I have looked for it. Order INSECTIVORA. Family ERINACEIDAE, Bonap. Genus Erinaceus, Linn. Erinaceus europaeus, Linn. Hedgehog. I should think there are very few places in Essex where this very common animal is not to be found. It may be seen in woods, hedges, and in the coarse herbage about the ditches of the marshes. The persecution it has long undergone at the hands of the game preserver, while diminishing its numbers, happily has not caused its extermination. Doubtless it sometimes in- dulges in the theft of an egg, a young partridge, or a pheasant; yet these delinquencies must be overlooked in consideration of the hedgehog's extreme usefulness in destroying grubs and insects. Numerous instances are also recorded of its having undoubtedly made a raid upon the poultry, and carried off young chickens from the hen ; while gamekeepers very gener- ally assert that it carries on a similar practice with young pheasants. Even so, I think we must still consider it to be one of the most harmless animals we have. In confinement, the hedgehog is quick to lose all fear, neither curling up, nor erecting its spines when handled, and