News etates that Mr. Chamberlin, a scientific gardener of that city, has discovered that the eggs of the army worm are deposited by a inoth, near the root of the grass, and attached to the sterns of the grass, and inclosed in a small sack about as largo as a China bean, and composed of a substance closely resombling cjotton in appearance. It. is affixed around the stern ol the grass in the shapo of the swab used for cleaning guns. If onr farmers wfll open their grass and examine the roots, they wil] find these little cotton sacks and eggs in them. They will hatch out in about ten days, and as these sacks are perfectly water-tight, the only way to prevent their spreading is to piek these sacks off. Mr. C. says that when hutehed he has discovered that guano is a suro remedy, and wil! kill them immediately when well sprinkled. Ditches with guano íd them will stop their spreading.