Deadly Insects

The buffalo-gnat is creditod with ocoasioning a wide-spread mortality aniong tlie horses and müles of West Tonnessee. Many farmers liave lost all their working stook at a season of the year when they can least afford to do without them. The bite of this insect seems as deadly as that of the African tsetee, the pest of all fcravelers in South África. Mau and wild animáis appear to be invulnerable to the tsetse, but camela, doge, oxen, and liorses caunot long survive its attacks. In one expedition Dr. Livingstone lost fortythreo oxen from tliis cause. He was inclined to beliove that the ass was biteproof, but the oxperience of his last journey convinced hirn that he was in error. The donkey, though not so susceptible as some of the other animáis above inentioned, still Buccumba beiofe the litÜe brown fly with ydlow stripes. lts probosois piercea the skin of its víctima, mil draws thenoe a plentiful supply of blood. No special harm at fiist sci insto haro beon dono, but in a few days tlio and nose of a bitten animal begin to run ; a Kwelling makes its appearanoe ■ usder the jaw ; the muscles grow weak, and iinally the digestivo organs are dis: orderad and death soon follows. When dissected, the cellular tissuo under the skin is found to be injected with air, :is if soap-bubbles were scatterod over it. We have not yet reeeived full details of the operations oi' the ïennessee insect, but whatevcr it is, its' ravages are nuite