Before the New York Academy of Science a few days ago, Professor Albert R. Leeds gave some "facts gathered from eight years of personal inspection as to the alleged destruction of the Adirondack forests." He said that a rapid course of spoilation was going on in the outskirts of the forest, and the effect of it would soon be felt in the flow of the Hudson. The impression that the Adirondacks were pine-producing was a false one. Pine trees were seldom seen and the mountains were covered with spruce and hemlock. But the spruces, owing to a disease which attacked them a few years ago, are rapidly dying off. On the Ausable river and along the shores of Lake Champlain the destruction of the forest is especially great. Persons living about the forest start fires in the woodland which spread rapidly and are more destructive to the trees than the lumbermen. Professor Leeds thought that the railways which are making their way through the forests would be an important element in their destruction, for the sparks of the locomotives would originate forest fires. He said that the purchase of the forests by the State might not require so great an expenditure of money as was anticipated. * * * * * In closing an article on "Forestry and Farming," the Germantown Telegraph maintains that the idea that farmers and land-owners generally entertain that they may not live to enjoy the advantages of the tree-planting, should be utterly banished from their minds. It will require only about twenty years to realize the most liberal hopes of success; at least it will add to the value of the farm by the fact that the amount of timber is to be increased instead of diminished. We all know how anxious every purchaser of a tract of land is to know whether there is any and how much timber upon a farm offered for sale. In fact, there is no greater mistake made than to cut down the wood upon a farm when purchased, with a view to meet the second payment; and this mistake is invariably brought home to everyone in a few years. It is like taking the life-blood out of the land. SCIENTIFIC. Official Weather Wisdom.