than wax and is an excellent cement. They guard against the entrance of ants and other inimical intruders into their live, by gluing or filling up with this propolis the smallest inlets; and with it they fasten the edge of their hive to its floor in a very secure manner. Some Bees stand as sentinels, and mount guard, as it were, to prevent the intrusion of strangers and enemies. But if a snail, or other reptile, or any large insect, too heavy to be dislodged by their united efforts, forces its way into the hive, they first kill it, and then coat it over with propolis, to prevent being annoyed by the noisome smell, or by the naggots which might proceed from its putredation, if left to putrefy. Bees can perceive the approach of bad weather; for when black clouds are in the sky indicating rain, they immediately hurry home with the greatest speed; and when to the eye of man there is no visible token of a sudden shower or other inmediate change from fine weather to foul, Bees are aware of it, and by their sudden, hurried return to their hives, are the first to prognosticate a change as near; nor, often as I have observed them, have I ever found them wrong in this respect. The manner in which Bees rest when they settle, after having swarmed, and frequently in the hive also, is by collecting themselves into a cluster and hanging to each other by the hooks of their feet. When the weather has been warm I have frequently seen them, presently after being admitted into an end-box, hang in cathins or ropes : this they no doubt do to cool themselves the more. To view the Bees suspended from one another in these single ropes is a natural curiosity well worth attention. The flight of Bees when swarming is singularly rapid and most extraordinary : during some minutes after having risen into the air, they dart across each other in every conceivable direction, wheel round and shoot through the merry crowd again, again wheel round and again dart through ; and notwithstanding the very limited space within which they confine their gambols on these occasions, they never seem to come in contact or to clash with each other ; though animated and excited to a degree of apparently frantic ovation, I never have observed one Bee fall of another, and this it is that strikes me as being wonderful. The balls attached to the legs of Bees returning to the hives, consist of a powder gathered from the stanina of flowers. The Bee, when it enters the cup of the flower, rolls itself till its whole body is covered with the yellow farina that is therein. It then brushes off this powdery farina with its hind legs, and kneads it into two balls or small pellets, loaded with which it returns to the hive. Bees powdered all over with farina, may frequently be seen entering their hives; the Bees thus covered carry their loads upon their whole bodies, without the labour of packing them upon their thighs. Probably when farina is collected in the innmediate vicinity of their hives, Bees may have the wisdom (I know not what else it can be properly called) to save themselves the labour of brushing and making it into pellets. Some authors hold that this substance is eaten by degrees, and being digested in the body of the Bee, that it becomes wax,--or that by some peculiar process it certainly is converted into wax,--and that when there is a superfluous quantity of this undigested, or unmanufactured matter, it is laid up in store, and is called _Bee-bread_. For my part I am of opinion that farina is stored up purely as Bee-bread and food for the young brood, and that _it enters not into the compo sition of wav._ The material of which wax is formed I take to be quite distinct from farina --a material of a different nature.