examine it more closely on my return, but a crow in the apple-tree overhead chanced to spy the nest and made off with it in his beak before I could rescue the honey store of the poor little bees I had so unwittingly injured.
That old tree-stump is being gradually carried away by wasps. The wood is just sufficiently decayed to afford the material of which they make their nests. You see there are several wasps busily rasping pieces of the rotten wood into convenient-sized morsels, which they can carry to the nest, there to be masticated into the papery layers of which the outer walls of the nest are formed. This walk used to have a row of grand old silver firs of great height, but each winter some of them have been blown down till only a few are left.
Some years since I noticed at the root of one of them a pile of fine sawdust more than a foot high, and found that some wood wasps were busily engaged in excavating the interior of the tree and forming tunnels in which to lay their eggs. I watched them for half an hour and found that every half-minute a wasp went in at the aperture carrying a blue-bottle or some kind of fly
