I got to-day and yesterday the first decided impression of greenness beginning to prevail, summer-like. It struck me as I was going past some opening and by chance looked up some valley or glade, - greenness just beginning to prevail over the brown or tawny. It is a sudden impression of greater genialness in the air, when this greenness first makes an impression on you at some turn, from blades of grass decidedly green, though thin, in the sun and the still, warm air, on some warm orchard-slope perhaps. It reminds you of the time, not far off, when you will see the dark shadows of the trees there and buttercups spotting the grass. Even the grass begins to wave, in the 19th-of-April fashion. When the wind is still cool elsewhere, I glance up some warm southern slope, sunny and still, where the thinly scattered blades of green grass, lately sprung, already perchance begin to wave, and I am suddenly advertised that a new season has arrived. This is the beginning of that season which, methinks, culminates with the buttercup and wild pink and Viola pedata. It begins when the first toad is heard.