while true do

-- Check if a tree has grown
    turtle.select(2)
    if turtle.compare("true")
        turtle.dig()
        turtle.forward()

-- Chop the tree
        while turtle.digUp() do
            turtle.up()
        end

-- Done chopping, return to the bottom
        while not turtle.detectDown() do
            turtle.down()
        end

-- Turn, move onto the chest, then deposit the items
        turtle.turnRight()
        turtle.turnRight()
        turtle.forward()
        for i = 3,16 do
            turtle.select(i)
            dropDown()
        end

-- Place a sapling
        turtle.turnRight()
        turtle.turnRight()
        turtle.select(1)
        turtle.place()
    else
        sleep(1)
    end
end