Before Verrocchio, his precursors, first Alessio Baldovinetti and then Pollaiuolo, had attempted to treat landscape as naturalistically as painting would permit. Their ideal was to note it down with absolute correctness from a given point of view; their subject almost invariably the Valdarno; their achievement, a bird’s-eye view of this Tuscan paradise. Nor can it be denied that this gives pleasure, but the pleasure is only such as is conveyed by tactile values.