I can’t help wishing that my hillside had some evergreens—the graceful hemlock, for instance, mixed with the lacework of the leafless maples and birches, the bolder outlines of the hickories and chestnuts, the brown of the oaks and yellow of the willows—but I can shut my eyes and see them in fancy, and the half-hour goes away so quickly, and I go into the house and it seems to have a sort of oniony, turnipy, apple-saucey smell that makes me open all the doors and windows for two or three minutes to “flush it” with air, as the plumbers tell about “flushing” drain[-]pipes with water.
Source: wiktionary