Next, there should be neighborhood or township associations for the protection of insect-eating birds. We must not merely agree to let them live--we must cherish and protect them. I believe that very simple cups or bowls of cast-iron, having each a hole in its centre of suitable size, that need not cost sixpence each, and could be fastened to the side of a tree with one nail lightly driven, would in time be adopted by many birds as nesting strongholds, whence they might laugh to scorn their predacious enemies. If every harmless bird could build its nest among us in a place where its eggs would be safe from hawks, crows, cats, boys, and other robbers, the number of such birds would quickly be doubled and quadrupled. And we must summon the law to our aid. Though law can do little or nothing against stealthy, skulking nest-plunderers, it can help us materially in our warfare with the cowardly vagabonds who traverse our fields with musket or rifle, blazing away at every unsuspecting robin or thrush that they can discover. Make it trespass, punishable with fine and imprisonment, to shoot on another's land without his express permission, and the cowardly massacre of the farmers' humble allies would be checked at once, and, when public sentiment had been properly enlightened, might, in civilized regions, be arrested altogether. XXIII. ABOUT TREE-PLANTING. I have had so little experience in Tree-Planting that I should have preferred to say no more about it; but letters that have reached me imply that the ignorance of others is even denser than mine. For the sake of those only who are conscious that they know nothing, yet are not unwilling to learn, I venture a few timid suggestions with regard to Tree-Planting. I. Ten or twelve years ago, I bought a pound or more of Locust seed rather late in the Spring, scalded it by plunging for a moment the little cotton bag which held it into a pot of boiling water, and letting the seed steep and steam in the bag till next morning, when the seed was planted in rows in a newly broken bit of poor old pasture-land. This was a mistake; I should have given that seed the richest available spot in my garden, to say nothing of planting it as early as April 20th. My locusts came up slowly and grew feebly that year, not to speak of the many seeds that did not sprout at all. Still many came up and survived, and my place is this day the richer for them. It might have been still richer had I seasonably known more.